patch 8.2.0143: Coverity warning for possible use of NULL pointer

Problem:    Coverity warning for possible use of NULL pointer.
Solution:   Check argv is not NULL.

src/channel.c

@@ -5993,7 +5993,7 @@ theend:
 #ifndef USE_ARGV
     vim_free(ga.ga_data);
 #endif
-    if (argv != job->jv_argv)
+    if (argv != NULL && argv != job->jv_argv)
     {
 	for (i = 0; argv[i] != NULL; i++)
 	    vim_free(argv[i]);

src/version.c

@@ -742,6 +742,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    143,
 /**/
     142,
 /**/