patch 8.2.0797: MS-Windows: compiler still can't handle C99 construct

Problem:    MS-Windows: compiler still can't handle C99 construct.
Solution:   Change to C90 construct. (Dominique Pelle, closes #6106)

src/libvterm/src/state.c

@@ -1780,8 +1780,7 @@ static int on_resize(int rows, int cols, void *user)
       }
 
       for( ; row < rows; row++) {
-	VTermLineInfo lineInfo = (VTermLineInfo){0};
-	lineInfo.doublewidth = 0;
+	VTermLineInfo lineInfo = {0};
 	newlineinfo[row] = lineInfo;
       }
 

src/version.c

@@ -746,6 +746,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    797,
 /**/
     796,
 /**/