updated for version 7.4.237
Problem:    When some patches was not included has("patch-7.4.123") may return
            true falsely.
Solution:   Check for the specific patch number.
diff --git a/runtime/doc/eval.txt b/runtime/doc/eval.txt
index 66b3038..007c7f7 100644
--- a/runtime/doc/eval.txt
+++ b/runtime/doc/eval.txt
@@ -1682,7 +1682,7 @@
 		is 501.  Read-only.  "version" also works, for backwards
 		compatibility.
 		Use |has()| to check if a certain patch was included, e.g.: >
-			if has("patch123")
+			if has("patch-7.4.123")
 <		Note that patch numbers are specific to the version, thus both
 		version 5.0 and 5.1 may have a patch 123, but these are
 		completely different.
diff --git a/src/eval.c b/src/eval.c
index 042afca..05f91b3 100644
--- a/src/eval.c
+++ b/src/eval.c
@@ -12647,14 +12647,13 @@
 	    {
 		int major = atoi((char *)name + 6);
 		int minor = atoi((char *)name + 8);
-		int patch = atoi((char *)name + 10);
 
 		/* Expect "patch-9.9.01234". */
 		n = (major < VIM_VERSION_MAJOR
 		     || (major == VIM_VERSION_MAJOR
 			 && (minor < VIM_VERSION_MINOR
 			     || (minor == VIM_VERSION_MINOR
-				 && patch <= highest_patch()))));
+				 && has_patch(atoi((char *)name + 10))))));
 	    }
 	    else
 		n = has_patch(atoi((char *)name + 5));
diff --git a/src/version.c b/src/version.c
index 6b63fbc..7d3bde9 100644
--- a/src/version.c
+++ b/src/version.c
@@ -735,6 +735,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    237,
+/**/
     236,
 /**/
     235,