patch 8.2.0344: ":def" not skipped properly

Problem:    ":def" not skipped properly.
Solution:   Add CMD_def to list of commands the require evaluation even when
            not being executed.

src/ex_docmd.c

@@ -2357,6 +2357,7 @@ do_one_cmd(
 	    case CMD_finally:
 	    case CMD_endtry:
 	    case CMD_function:
+	    case CMD_def:
 				break;
 
 	    // Commands that handle '|' themselves.  Check: A command should

src/version.c

@@ -738,6 +738,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    344,
 /**/
     343,
 /**/