Merge branch 'rj/cygwin-exit'

Treat ECONNABORTED the same as ECONNRESET in 'git credential-cache' to
work around a possible Cygwin regression. This resolves a race condition
caused by changes in Cygwin's handling of socket closures, allowing the
client to exit cleanly when encountering ECONNABORTED.

* rj/cygwin-exit:
  credential-cache: treat ECONNABORTED like ECONNRESET

builtin/credential-cache.c

@@ -30,7 +30,7 @@ static int connection_fatally_broken(int error)
 
 static int connection_closed(int error)
 {
-	return (error == ECONNRESET);
+	return error == ECONNRESET || error == ECONNABORTED;
 }
 
 static int connection_fatally_broken(int error)