no need to pad values; provide a default on machines without cgroup

Process.h

@@ -65,6 +65,9 @@ typedef enum ProcessField_ {
    #ifdef HAVE_TASKSTATS
    RCHAR, WCHAR, SYSCR, SYSCW, RBYTES, WBYTES, CNCLWB, IO_READ_RATE, IO_WRITE_RATE, IO_RATE,
    #endif
+   #ifdef HAVE_CGROUP
+   CGROUP,
+   #endif
    LAST_PROCESSFIELD
 } ProcessField;
 
@@ -155,6 +158,9 @@ typedef struct Process_ {
    double io_rate_write_bps;
    unsigned long long io_rate_write_time;   
    #endif
+   #ifdef HAVE_CGROUP
+   char* cgroup;
+   #endif
 } Process;
 
 

ProcessList.c

@@ -653,12 +653,12 @@ static bool ProcessList_processEntries(ProcessList* this, const char* dirname, P
                   char** fields = String_split(trimmed, ':');
                   free(trimmed);
       
-                  char* value = String_cat(fields[2], "         ");
+                  process->cgroup = strndup(fields[2] + 1, 10);
                   String_freeArray(fields);
-                  process->cgroup = strndup(value + 1, 10);
-                  free(value);
                }
                fclose(status);
+            } else {
+               process->cgroup = strdup("");
             }
             #endif