updated for version 7.4.145

Problem:    getregtype() does not return zero for unknown register.
Solution:   Adjust documention: return empty string for unknown register.
            Check the register name to be valid. (Yukihiro Nakadaira)

src/version.c

@@ -738,6 +738,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    145,
 /**/
     144,
 /**/