patch 8.1.2207: "gn" doesn't work quite right

Problem:    "gn" doesn't work quite right. (Jaehwang Jerry Jung)
Solution:   Improve and simplify the search logic. (Christian Brabandt,
            closes #5103, closes #5075)
diff --git a/src/version.c b/src/version.c
index e6a66be..91cdf33 100644
--- a/src/version.c
+++ b/src/version.c
@@ -742,6 +742,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    2207,
+/**/
     2206,
 /**/
     2205,