patch 8.0.1051: cannot run terminal with spaces in argument

Problem:    Cannot run terminal with spaces in argument.
Solution:   Accept backslash to escape space and other characters. (closes
            #1999)

src/version.c

@@ -769,6 +769,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    1051,
 /**/
     1050,
 /**/