patch 8.0.1546: using feedkeys() in a terminal may trigger mappings

Problem:    Using feedkeys() in a terminal window may trigger mappings.
            (Charles Sheridan)
Solution:   Avoid triggering a mapping when peeking for a key.
diff --git a/src/version.c b/src/version.c
index 8f46214..af3baf5 100644
--- a/src/version.c
+++ b/src/version.c
@@ -779,6 +779,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    1546,
+/**/
     1545,
 /**/
     1544,