patch 8.1.0275: 'incsearch' with :s doesn't start at cursor line

Problem:    'incsearch' with :s doesn't start at cursor line.
Solution:   Set cursor before parsing address. (closes #3318)
            Also accept a match at the start of the first line.
diff --git a/src/version.c b/src/version.c
index 8d02863..a8262a7 100644
--- a/src/version.c
+++ b/src/version.c
@@ -795,6 +795,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    275,
+/**/
     274,
 /**/
     273,