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

diff --git a/dir.c b/dir.c
index 1f507daff2c278a70da768e3754a68891b946973..edc458e020772a7ab704e9cf69786d3aa641bcd4 100644 (file)
--- a/dir.c
+++ b/dir.c
@@ -704,8 +704,7 @@ static struct path_simplify *create_simplify(const char **pathspec)
 
 static void free_simplify(struct path_simplify *simplify)
 {
-       if (simplify)
-               free(simplify);
+       free(simplify);
 }
 
 int read_directory(struct dir_struct *dir, const char *path, const char *base, int baselen, const char **pathspec)