real_path_internal(): add comment explaining use of cwd

diff --git a/help.c b/help.c
index 6012c07b735a541659cd75e2334563aeb933bfcb..2a42ec6d1f312b573d7b1da1a15471d21efc5b4d 100644 (file)
--- a/help.c
+++ b/help.c
@@ -6,6 +6,7 @@
 #include "common-cmds.h"
 #include "string-list.h"
 #include "column.h"
+#include "version.h"
 
 void add_cmdname(struct cmdnames *cmds, const char *name, int len)
 {
@@ -43,9 +44,12 @@ static void uniq(struct cmdnames *cmds)
        if (!cmds->cnt)
                return;
 
-       for (i = j = 1; i < cmds->cnt; i++)
-               if (strcmp(cmds->names[i]->name, cmds->names[i-1]->name))
+       for (i = j = 1; i < cmds->cnt; i++) {
+               if (!strcmp(cmds->names[i]->name, cmds->names[j-1]->name))
+                       free(cmds->names[i]);
+               else
                        cmds->names[j++] = cmds->names[i];
+       }
 
        cmds->cnt = j;
 }
@@ -60,9 +64,10 @@ void exclude_cmds(struct cmdnames *cmds, struct cmdnames *excludes)
                cmp = strcmp(cmds->names[ci]->name, excludes->names[ei]->name);
                if (cmp < 0)
                        cmds->names[cj++] = cmds->names[ci++];
-               else if (cmp == 0)
-                       ci++, ei++;
-               else if (cmp > 0)
+               else if (cmp == 0) {
+                       ei++;
+                       free(cmds->names[ci++]);
+               } else if (cmp > 0)
                        ei++;
        }