MAINTAINERS: Add VSPRINTF

printk maintainers have been reviewing patches against vsprintf code last
few years. Most changes have been committed via printk.git last two years.

New group is used because printk() is not the only vsprintf() user.
Also the group of interested people is not the same.

Link: http://lkml.kernel.org/r/[email protected]
Cc: Rasmus Villemoes <[email protected]>
Cc: Sergey Senozhatsky <[email protected]>
Cc: [email protected]
Cc: Andrew Morton <[email protected]>
Cc: Uwe Kleine-König <[email protected]>
Cc: Joe Perches <[email protected]>
Cc: Sakari Ailus <[email protected]>
Acked-by: Steven Rostedt (VMware) <[email protected]>
Acked-by: Andy Shevchenko <[email protected]>
Acked-by: Sergey Senozhatsky <[email protected]>
Signed-off-by: Petr Mladek <[email protected]>

MAINTAINERS

@@ -17035,6 +17035,18 @@ S:	Maintained
 F:	drivers/net/vrf.c
 F:	Documentation/networking/vrf.txt
 
+VSPRINTF
+M:	Petr Mladek <[email protected]>
+M:	Steven Rostedt <[email protected]>
+M:	Sergey Senozhatsky <[email protected]>
+R:	Andy Shevchenko <[email protected]>
+R:	Rasmus Villemoes <[email protected]>
+T:	git git://git.kernel.org/pub/scm/linux/kernel/git/pmladek/printk.git
+S:	Maintained
+F:	lib/vsprintf.c
+F:	lib/test_printf.c
+F:	Documentation/core-api/printk-formats.rst
+
 VT1211 HARDWARE MONITOR DRIVER
 M:	Juerg Haefliger <[email protected]>
 L:	[email protected]