git p4: temp branch name should use / even on windows

diff --git a/usage.c b/usage.c
index 8eab28113a970a3f1bc7b9b430aa50341c2667e2..40b3de51c7dfa3fdaaeb44e1c64a2208560414c5 100644 (file)
--- a/usage.c
+++ b/usage.c
@@ -130,6 +130,7 @@ void NORETURN die_errno(const char *fmt, ...)
        va_end(params);
 }
 
+#undef error
 int error(const char *err, ...)
 {
        va_list params;