Merge branch 'jk/no-system-includes-in-dot-c'

Compilation fix.

* jk/no-system-includes-in-dot-c:
  wt-status.h: drop stdio.h include
  verify-tag: drop signal.h include

builtin/verify-commit.c

@@ -12,7 +12,6 @@
 #include "repository.h"
 #include "commit.h"
 #include "run-command.h"
-#include <signal.h>
 #include "parse-options.h"
 #include "gpg-interface.h"