patch 8.1.0223: completing shell command finds sub-directories in $PATH

Problem:    Completing shell command finds sub-directories in $PATH.
Solution:   Remove EW_DIR when completing an item in $PATH. (Jason Franklin)

src/version.c

@@ -798,6 +798,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    223,
 /**/
     222,
 /**/