patch 8.1.0217: compiler warning for variable set but not used

Problem:    Compiler warning for variable set but not used.
Solution:   Move tilde_file inside #ifdef. (Hirohito Higashi, closes #3255)

Author: brammool

src/ex_docmd.c

@@ -10654,9 +10654,9 @@ eval_vars(
     int		resultlen;
     buf_T	*buf;
     int		valid = VALID_HEAD + VALID_PATH;    /* assume valid result */
-    int		tilde_file = FALSE;
     int		spec_idx;
 #ifdef FEAT_MODIFY_FNAME
+    int		tilde_file = FALSE;
     int		skip_mod = FALSE;
 #endif
     char_u	strbuf[30];
@@ -10723,7 +10723,9 @@ eval_vars(
 		else
 		{
 		    result = curbuf->b_fname;
+#ifdef FEAT_MODIFY_FNAME
 		    tilde_file = STRCMP(result, "~") == 0;
+#endif
 		}
 		break;
 
@@ -10790,7 +10792,9 @@ eval_vars(
 		    else
 		    {
 			result = buf->b_fname;
+#ifdef FEAT_MODIFY_FNAME
 			tilde_file = STRCMP(result, "~") == 0;
+#endif
 		    }
 		}
 		break;

src/version.c

@@ -798,6 +798,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    217,
 /**/
     216,
 /**/