git-p4: Unset P4DIFF environment variable when using 'p4 -du diff'

diff --git a/setup.c b/setup.c
index 89c81e54e6d25d7ba2bec8831621283f32fd3108..41e298b8f549dcce28fca335c5f5b7fe5aea27bb 100644 (file)
--- a/setup.c
+++ b/setup.c
@@ -202,6 +202,8 @@ const char **get_pathspec(const char *prefix, const char **pathspec)
                const char *p = prefix_path(prefix, prefixlen, *src);
                if (p)
                        *(dst++) = p;
+               else
+                       exit(128); /* error message already given */
                src++;
        }
        *dst = NULL;