findmnt: (verify) add docs

Signed-off-by: Karel Zak <kzak@redhat.com>

misc-utils/findmnt-verify.c

@@ -514,7 +514,7 @@ done:
 		fprintf(stderr, P_(", %d warning",   ", %d warnings", vfy.nwarnings), vfy.nwarnings);
 		fputc('\n', stderr);
 	} else
-		fprintf(stdout, _("\nSuccess, no errors or warnings detected\n"));
+		fprintf(stdout, _("Success, no errors or warnings detected\n"));
 
 	return rc != 0 ? rc : vfy.nerrors + parse_nerrors;
 }

misc-utils/findmnt.8

@@ -233,6 +233,16 @@ Do not print a [/dir] in the SOURCE column for bind mounts or btrfs subvolumes.
 .TP
 .BR \-w , " \-\-timeout \fImilliseconds\fP"
 Specify an upper limit on the time for which \fB\-\-poll\fR will block, in milliseconds.
+.TP
+.BR \-x , " \-\-verify"
+Check mount table content. The default is to verify
+.IR /etc/fstab
+parsability and usability. It's possible to use this option also with \fB\-\-tab\-file\fP.
+It's possible to specify source (device) or target (mountpoint) to filter mount table. The option
+\fB\-\-verbose\fP forces findmnt to print more details.
+.TP
+.BR " \-\-verbose"
+Force findmnt to print more information (\fB\-\-verify\fP only for now).
 .SH EXAMPLES
 .IP "\fBfindmnt \-\-fstab \-t nfs\fP"
 Prints all NFS filesystems defined in

sys-utils/mount.8

@@ -515,6 +515,10 @@ Mount all filesystems (of the given types) mentioned in
 .B noauto
 keyword).  The filesystems are mounted following their order in
 .IR fstab .
+.sp
+Note that it is a bad manner to use \fBmount \-a\fR for
+.IR fstab
+checking. The recommended solution is \fBfindmnt \-\-verify\fR.
 .TP
 .BR \-B , " \-\-bind"
 Remount a subtree somewhere else (so that its contents are available