Remove "function" from line to avoid dash objecting to this bash-ism

[Mark Geisert]

I've been home-building the last few versions of Cygwin DLL on Windows 
where I routinely have dash set as my non-interactive shell.  The only 
issue I run into is this one occurrence of the 'function' keyword in 
winsup/cygwin/mkvers.sh.  This patch gets rid of the keyword.

FWIW using dash instead of bash has the build running 5%-10% faster.
Cheers,

..mark

>From fb9db7a75c7e391f451cb1df3c1e8463ef4c7bf3 Mon Sep 17 00:00:00 2001
From: Mark Geisert <mark@maxrnd.com>
Date: Wed, 5 Apr 2017 22:20:09 -0700
Subject: [PATCH] Remove "function" from line to avoid dash objecting to 
this bash-ism.

---
  winsup/cygwin/mkvers.sh | 2 +-
  1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/winsup/cygwin/mkvers.sh b/winsup/cygwin/mkvers.sh
index 7e763e0..5aecb14 100755
--- a/winsup/cygwin/mkvers.sh
+++ b/winsup/cygwin/mkvers.sh
@@ -34,7 +34,7 @@ done
    echo "**** Couldn't open file '$incfile'.  Aborting."
  }

-function parse_preproc_flags() {
+parse_preproc_flags() {
    # Since we're manually specifying the preprocessor, pass the default 
flags
    # normally defined.
    ccflags="--preprocessor=$1 --preprocessor-arg=-E \
--
2.8.3