Clarify the e2fsck man page regarding the -c option

A user was confused about whether or not e2fsck -c performed a destructive 
test on the filesystem, since it stated that -cc resulted in a non-destructive
read/write test.   Clarify that -c does a read/only test.

Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>

2 files changed