patch 8.2.0713: the pam_environment file is not recognized

Problem:    The pam_environment file is not recognized.
Solution:   Add a filetype pattern for pamenv. (closes #6051)
diff --git a/src/version.c b/src/version.c
index f9ce53b..2d5931a 100644
--- a/src/version.c
+++ b/src/version.c
@@ -747,6 +747,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    713,
+/**/
     712,
 /**/
     711,