Merge branch 'jk/pager-bypass-cat-for-default-pager'

If a build-time fallback is set to "cat" instead of "less", we
should apply the same "no subprocess or pipe" optimization as we
apply to user-supplied GIT_PAGER=cat.

* jk/pager-bypass-cat-for-default-pager:
  pager: turn on "cat" optimization for DEFAULT_PAGER

pager.c

@@ -54,7 +54,7 @@ const char *git_pager(int stdout_is_tty)
 		pager = getenv("PAGER");
 	if (!pager)
 		pager = DEFAULT_PAGER;
-	else if (!*pager || !strcmp(pager, "cat"))
+	if (!*pager || !strcmp(pager, "cat"))
 		pager = NULL;
 
 	return pager;