patch 7.4.2150

Problem:    Warning with MinGW 64. (John Marriott)
Solution:   Change return type. (Ken Takata)

src/os_win32.c

@@ -4212,7 +4212,7 @@ mch_system_classic(char *cmd, int options)
  * process. This way avoid to hang up vim totally if the children
  * process take a long time to process the lines.
  */
-    static DWORD WINAPI
+    static unsigned int __stdcall
 sub_process_writer(LPVOID param)
 {
     HANDLE	    g_hChildStd_IN_Wr = param;

src/version.c

@@ -763,6 +763,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    2150,
 /**/
     2149,
 /**/