Update Documentation/admin-guide/sysctl/fs.rst

max_user_watches for epoll should say 1/25, rather than 1/32

Signed-off-by: Eric Curtin <[e-mail]>
Link: https://lore.kernel.org/r/[e-mail]
Signed-off-by: Jonathan Corbet <[e-mail]>

Documentation/admin-guide/sysctl/fs.rst

···
 allowed for each user.
 Each "watch" costs roughly 90 bytes on a 32bit kernel, and roughly 160 bytes
 on a 64bit one.
-The current default value for  max_user_watches  is the 1/32 of the available
-low memory, divided for the "watch" cost in bytes.
+The current default value for  max_user_watches  is the 1/25 (4%) of the
+available low memory, divided for the "watch" cost in bytes.