Bash-5.2 patch 20: allow time reserved word as first token in command substitution

parse.y

@@ -3150,6 +3150,7 @@ time_command_acceptable ()
     case TIME:		/* time time pipeline */
     case TIMEOPT:	/* time -p time pipeline */
     case TIMEIGN:	/* time -p -- ... */
+    case DOLPAREN:
       return 1;
     default:
       return 0;

patchlevel.h

@@ -25,6 +25,6 @@
    regexp `^#define[ 	]*PATCHLEVEL', since that's what support/mkversion.sh
    looks for to find the patch level (for the sccs version string). */
 
-#define PATCHLEVEL 19
+#define PATCHLEVEL 20
 
 #endif /* _PATCHLEVEL_H_ */

y.tab.c

@@ -5465,6 +5465,7 @@ time_command_acceptable ()
     case TIME:		/* time time pipeline */
     case TIMEOPT:	/* time -p time pipeline */
     case TIMEIGN:	/* time -p -- ... */
+    case DOLPAREN:
       return 1;
     default:
       return 0;