patch 7.4.1472

Problem:    Coverity warning for not using return value.
Solution:   Add "(void)".

Author: brammool

src/os_unix.c

@@ -5235,9 +5235,9 @@ mch_clear_job(job_T *job)
 {
     /* call waitpid because child process may become zombie */
 # ifdef __NeXT__
-    wait4(job->jv_pid, NULL, WNOHANG, (struct rusage *)0);
+    (void)wait4(job->jv_pid, NULL, WNOHANG, (struct rusage *)0);
 # else
-    waitpid(job->jv_pid, NULL, WNOHANG);
+    (void)waitpid(job->jv_pid, NULL, WNOHANG);
 # endif
 }
 #endif

src/version.c

@@ -743,6 +743,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    1472,
 /**/
     1471,
 /**/