patch 8.2.0737: when shell doesn't support CTRL-Z Vim still handles it

Problem:    When shell doesn't support CTRL-Z Vim still handles it.
Solution:   Ignore the STOP signal if it was ignored on startup.
            (Kurtis Rader, closes #5990, closes #6058)
diff --git a/src/version.c b/src/version.c
index 7fcef28..31d83ce 100644
--- a/src/version.c
+++ b/src/version.c
@@ -747,6 +747,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    737,
+/**/
     736,
 /**/
     735,