tmpfs: add "tmpfs" to the Kconfig prompt to make it obvious.

Add the leading word "tmpfs" to the Kconfig string to make it blindingly
obvious that this selection refers to tmpfs.
Signed-off-by: Robert P. J. Day <rpjday@crashcourse.ca>
Acked-by: Hugh Dickins <hughd@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

fs/Kconfig

@@ -109,7 +109,7 @@ source "fs/proc/Kconfig"
 source "fs/sysfs/Kconfig"
 
 config TMPFS
-	bool "Virtual memory file system support (former shm fs)"
+	bool "Tmpfs virtual memory file system support (former shm fs)"
 	depends on SHMEM
 	help
 	  Tmpfs is a file system which keeps all files in virtual memory.