Fix formatting of gb plugin completion

plugins/getgb/getgb.plugin.zsh

-function _gb_commands() {
-    local ret=1 state
-    _arguments -C ':command:->command' '*::options:->options' && ret=0
+_gb () {
+	local ret=1 state
+	_arguments -C ':command:->command' '*::options:->options' && ret=0
 
-    case $state in
-      (command)
-
-        local -a subcommands
-        subcommands=(
-          "build:build a package"
-          "doc:show documentation for a package or symbol"
-          "env:print project environment variables"
-          "generate:generate Go files by processing source"
-          "help:displays the help"
-          "info:info returns information about this project"
-          "list:list the packages named by the importpaths"
-          "test:test packages"
-          "vendor:manage your vendored dependencies"
-        )
-        _describe -t subcommands 'gb subcommands' subcommands && ret=0
-      ;;
-
-      (options)
-        case $line[1] in
-          (build)
-            _arguments \
-              -f'[ignore cached packages]' \
-              -F'[do not cache packages]' \
-              -q'[decreases verbosity]' \
-              -P'[the number of build jobs to run in parallel]' \
-              -R'[sets the base of the project root search path]' \
-              -dotfile'[output a dot formatted file of the build steps]' \
-              -ldflags'["flag list" arguments to pass to the linker]' \
-              -gcflags'["arg list" arguments to pass to the compiler]' \
-              -race'[enable data race detection]' \
-              -tags'["tag list" additional build tags]'
-            ;;
-          (list)
-            _arguments \
-              -f'[alternate format for the list, using the syntax of package template]' \
-              -s'[read format template from STDIN]' \
-              -json'[prints output in structured JSON format]'
-            ;;
-          (test)
-            _arguments \
-              -v'[print output from test subprocess]' \
-              -ldflags'["flag list" arguments to pass to the linker]' \
-              -gcflags'["arg list" arguments to pass to the compiler]' \
-              -race'[enable data race detection]' \
-              -tags'["tag list" additional build tags]'
-            ;;
-          (vendor)
-            __gb-vendor
-        esac
-      ;;
-    esac
+	case $state in
+	(command)
+		local -a subcommands
+		subcommands=(
+			"build:build a package"
+			"doc:show documentation for a package or symbol"
+			"env:print project environment variables"
+			"generate:generate Go files by processing source"
+			"help:displays the help"
+			"info:info returns information about this project"
+			"list:list the packages named by the importpaths"
+			"test:test packages"
+			"vendor:manage your vendored dependencies"
+		)
+		_describe -t subcommands 'gb subcommands' subcommands && ret=0
+		;;
+	(options)
+		case $line[1] in
+		(build)
+			_arguments \
+				-f'[ignore cached packages]' \
+				-F'[do not cache packages]' \
+				-q'[decreases verbosity]' \
+				-P'[the number of build jobs to run in parallel]' \
+				-R'[sets the base of the project root search path]' \
+				-dotfile'[output a dot formatted file of the build steps]' \
+				-ldflags'["flag list" arguments to pass to the linker]' \
+				-gcflags'["arg list" arguments to pass to the compiler]' \
+				-race'[enable data race detection]' \
+				-tags'["tag list" additional build tags]'
+			;;
+		(list)
+			_arguments \
+				-f'[alternate format for the list, using the syntax of package template]' \
+				-s'[read format template from STDIN]' \
+				-json'[prints output in structured JSON format]'
+			;;
+		(test)
+			_arguments \
+				-v'[print output from test subprocess]' \
+				-ldflags'["flag list" arguments to pass to the linker]' \
+				-gcflags'["arg list" arguments to pass to the compiler]' \
+				-race'[enable data race detection]' \
+				-tags'["tag list" additional build tags]'
+			;;
+		(vendor)
+			_gb-vendor
+		esac
+		;;
+	esac
 
-    return ret
+	return ret
 }
 
-compdef _gb_commands gb
-
-__gb-vendor ()
-{
-  local curcontext="$curcontext" state line
+compdef _gb gb
 
-  _arguments -C ':command:->command' '*::options:->options'
+_gb-vendor () {
+	local curcontext="$curcontext" state line
+	_arguments -C ':command:->command' '*::options:->options'
 
 	case $state in
-		(command)
-
-			local -a subcommands
-			subcommands=(
-				'delete:deletes a local dependency'
-				'fetch:fetch a remote dependency'
-				'list:lists dependencies, one per line'
-        'purge:remove all unreferenced dependencies'
-				'restore:restore dependencies from the manifest'
-				'update:update a local dependency'
-			)
-			_describe -t subcommands 'gb vendor subcommands' subcommands && ret=0
+	(command)
+		local -a subcommands
+		subcommands=(
+			'delete:deletes a local dependency'
+			'fetch:fetch a remote dependency'
+			'list:lists dependencies, one per line'
+			'purge:remove all unreferenced dependencies'
+			'restore:restore dependencies from the manifest'
+			'update:update a local dependency'
+		)
+		_describe -t subcommands 'gb vendor subcommands' subcommands && ret=0
 		;;
-
-		(options)
-			case $line[1] in
-				(delete)
-					_arguments \
-						-all'[remove all dependencies]'
-				  ;;
-        (fetch)
-          _arguments \
-            -branch'[fetch from a particular branch]' \
-            -no-recurse'[do not fetch recursively]' \
-            -tag'[fetch the specified tag]' \
-            -revision'[fetch the specific revision from the branch (if supplied)]' \
-            -precaire'[allow the use of insecure protocols]' \
-          ;;
-        (list)
-          _arguments \
-            -f'[controls the template used for printing each manifest entry]'
-          ;;
-        (restore)
-          _arguments \
-            -precaire'[allow the use of insecure protocols]'
-          ;;
-        (update)
-          _arguments \
-            -all'[update all dependencies in the manifest or supply a given dependency]' \
-            -precaire'[allow the use of insecure protocols]'
-          ;;
-			esac
+	(options)
+		case $line[1] in
+			(delete)
+				_arguments \
+					-all'[remove all dependencies]'
+				;;
+			(fetch)
+				_arguments \
+					-branch'[fetch from a particular branch]' \
+					-no-recurse'[do not fetch recursively]' \
+					-tag'[fetch the specified tag]' \
+					-revision'[fetch the specific revision from the branch (if supplied)]' \
+					-precaire'[allow the use of insecure protocols]' \
+				;;
+			(list)
+				_arguments \
+					-f'[controls the template used for printing each manifest entry]'
+				;;
+			(restore)
+				_arguments \
+					-precaire'[allow the use of insecure protocols]'
+				;;
+			(update)
+				_arguments \
+					-all'[update all dependencies in the manifest or supply a given dependency]' \
+					-precaire'[allow the use of insecure protocols]'
+				;;
+		esac
 		;;
 	esac
 }