git-mergetool/difftool: make (g)vimdiff workable under Windows

diff --git a/test-parse-options.c b/test-parse-options.c
index 6e18083a7d1655e9eabef197c58d92a910d2f67b..61d2c39814529bd0264e4c9e40241131d51d819c 100644 (file)
--- a/test-parse-options.c
+++ b/test-parse-options.c
@@ -15,7 +15,7 @@ int length_callback(const struct option *opt, const char *arg, int unset)
        if (unset)
                return 1; /* do not support unset */
 
-       *(unsigned long *)opt->value = strlen(arg);
+       *(int *)opt->value = strlen(arg);
        return 0;
 }