mergetool: don't require a work tree for --tool-help

diff --git a/setup.c b/setup.c
index 613e3b3c13b3f09bce07c54dc440d03c0b5beb0c..0a22f8bd1d631fe5f0afe1d84162ca4064a00e4f 100644 (file)
--- a/setup.c
+++ b/setup.c
@@ -29,7 +29,7 @@ static int abspath_part_inside_repo(char *path)
                return -1;
        wtlen = strlen(work_tree);
        len = strlen(path);
-       off = 0;
+       off = offset_1st_component(path);
 
        /* check if work tree is already the prefix */
        if (wtlen <= len && !strncmp(path, work_tree, wtlen)) {
@@ -45,7 +45,7 @@ static int abspath_part_inside_repo(char *path)
                off = wtlen;
        }
        path0 = path;
-       path += offset_1st_component(path) + off;
+       path += off;
 
        /* check each '/'-terminated level */
        while (*path) {