look for test/unit instead of test/units. #typo

plugins/zeus/zeus.plugin.zsh

@@ -44,14 +44,14 @@ alias zucumber='zeus cucumber'
 alias zt='zeus test'
 alias zest='zeus test'
 
-alias zu='zeus test/units/*'
-alias zunits='zeus test/units/*'
+alias zu='zeus test/unit/*'
+alias zunits='zeus test/unit/*'
 
 alias zf='zeus test/functional/*'
 alias zunctional='zeus test/functional/*'
 
-alias za='zeus test test/units/*; zeus test test/functional/; zeus cucumber'
-alias zall='zeus test test/units/*; zeus test test/functional/; zeus cucumber'
+alias za='zeus test test/unit/*; zeus test test/functional/; zeus cucumber'
+alias zall='zeus test test/unit/*; zeus test test/functional/; zeus cucumber'
 
 # Clean up crashed zeus instances.
 alias zsw='rm .zeus.sock'