patch 8.0.1047: buffer overflow in Ruby

Problem:    Buffer overflow in Ruby.
Solution:   Allocate one more byte. (Dominique Pelle)

Author: brammool

src/if_ruby.c

@@ -984,7 +984,7 @@ static VALUE vim_message(VALUE self UNUSED, VALUE str)
     if (RSTRING_LEN(str) > 0)
     {
 	/* Only do this when the string isn't empty, alloc(0) causes trouble. */
-	buff = ALLOCA_N(char, RSTRING_LEN(str));
+	buff = ALLOCA_N(char, RSTRING_LEN(str) + 1);
 	strcpy(buff, RSTRING_PTR(str));
 	p = strchr(buff, '\n');
 	if (p) *p = '\0';

src/version.c

@@ -769,6 +769,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    1047,
 /**/
     1046,
 /**/