sync with style of other man pages

Reference: /n/atom/patch/applied/θfsmannits
Date: Sun Jan  3 01:31:52 CET 2016
Signed-off-by: quanstro@quanstro.net

--- /sys/man/4/θfs	Sun Jan  3 01:31:27 2016
+++ /sys/man/4/θfs	Sun Jan  3 01:31:28 2016
@@ -33,40 +33,42 @@
 .I θfs
 are definted as follows:
 .TP
-.I -a
+.B -a
 Disable AoE functionality, both the bock and object support.
 .TP
-.I -n
+.B -n
 Disable NFS functionality.
 .TP
-.I -m
+.B -m
 Set the number of blocks to keep in the in-memory cache.
 .TP
-.I -p
+.B -p
 Set the port number on which to listen for 9P connections.
 .TP
-.I -r
-Reame the file system on start up.
+.B -r
+Ream the file system on start up.
 .TP
-.I -s
+.B -s
 Read 9P messages from the standard input.
 This is used when a system takes its root from a local instance of
 .IR θfs .
 .TP
-.I -A
+.B -A
 Update access times on reads.
 .TP
-.I -C
+.B -C
 Post a console descriptor to
 .BR /srv .
 .TP
-.I -D
+.B -D
 Turn on 9P debugging.
 .PP
 .SH CONSOLE
 .PP
 When invoked with the
-.IR -C option, θfs
+.B -C
+option, 
+.I θfs
 posts a file descriptor to
 .BR /srv/θfscons .
 This console can be accessed by connecting to the descriptor with
@@ -78,85 +80,85 @@
 .PP
 This interactive console supports the following commands:
 .TP
-.I allow
+.B allow
 Turns off permissions checking and allows
 .I wstat
 (see
 .IR stat (5))
 messages to change file ownerships.
 .TP
-.I blockuse
+.B blockuse
 Looks up a specified block number and reports its role.
 This is intended primarily for debugging purposes.
 .TP
-.I checkalloc
+.B checkalloc
 Scans the file system looking for inconsistancies in the block
 allocation, reporting what it finds.
 It also rebuilds the free block map.
 .TP
-.I cstat
+.B cstat
 Reports on in-memory block cache statistics.
 .TP
-.I disallow
+.B disallow
 Reinstates permissions checking and prohibits file ownership
 changes.
 .TP
-.I dumpusers
+.B dumpusers
 Prints a list of all Plan 9 users and all NFS UID information
 loaded either at start-up or by the
 .I inituid
 command.
 .TP
-.I fixfamilies
+.B fixfamilies
 Scans the file system examining all parent/child/sibling
 relationships and removes entries with no valid metadata.
 .TP
-.I fixpaths
+.B fixpaths
 Removes path names in the path hash table that do not
 have valid metadata.
 .TP
-.I halt
+.B halt
 Flushes all modified blocks from the cache and terminates
 9P and NFS service.
 .TP
-.I help
+.B help
 Prints a list of the commands supported in the console and the
 number of command arguments each uses.
 .TP
-.I hstat
+.B hstat
 Prints a summary of hash table statistics.
 In particular, it reports on the number of bucket collisions and
 maximum search depth encountered since start-up.
 .TP
-.I inituid
+.B inituid
 Reloads the Plan 9 user file
 .B /adm/users
 and the NFS UID mappings specified in
 .BR /adm/nfs .
 .TP
-.I lcreate
+.B lcreate
 Creates an AoE LUN with a specified AoE ID and size.
 .TP
-.I lls
+.B lls
 Prints a list of AoE LUNs.
 .TP
-.I lmeta
+.B lmeta
 Prints the metadata for the specified AoE LUN.
 .TP
-.I lrm
+.B lrm
 Removes the specified AoE LUN.
 .TP
-.I mpred
+.B mpred
 Locates the predecessor to the specified meatadatum in the
 metadata list of which it's a part.
 .TP
-.I mprint
+.B mprint
 Prints the details of the specified metadatum.
 .TP
-.I mstat
+.B mstat
 Prints a summary of metadata statistics.
 .TP
-.I newroot
+.B newroot
 Creates a new file tree within the file system storage
 space.
 The file tree named
@@ -166,67 +168,67 @@
 Named roots are accessible by way of the mount specifier
 in 9P and as top-level directories in a virtual root in NFS.
 .TP
-.I nfsdebug
+.B nfsdebug
 Prints the current debug level of NFS when invoked with no
 arguments.
 Otherwise, sets the NFS debug level to the specified value.
 .TP
-.I p2q
+.B p2q
 Looks up and prints the QID path value for the specified path
 name.
 .TP
-.I p9debug
+.B p9debug
 Sets the value of the
 .B chatty9p
 variable.
 .TP
-.I phash
+.B phash
 Shows the bucket number and the location of the hash list
 for the specified path name.
 .TP
-.I pmeta
+.B pmeta
 Prints the metadata list for the specified path name.
 .TP
-.I q2m
+.B q2m
 Looks up and prints the index of the first metadatum for
 the specified QID path.
 .TP
-.I qmeta
+.B qmeta
 Prints the metadata list for the specified QID path.
 .TP
-.I recovermeta
+.B recovermeta
 Scans the file system and rebuilds the free list of metadata
 entries.
 .TP
-.I revert
+.B revert
 Reverses the effect of changes made since a specified snapshot.
 The file system is rolled back in time to the point at which the
 specified snapshot was taken.
 .TP
-.I rmp
+.B rmp
 Removes the specified path name from the path hash table.
 .TP
-.I rootallow
+.B rootallow
 Gives UID 0 unchecked access over NFS according to traditional
 UNIX superuser privileges.
 .TP
-.I rootdisallow
+.B rootdisallow
 Treats UID 0 as though it were any normal user and enforces
 permissions checking for it as such.
 .TP
-.I setmeta
+.B setmeta
 Adds (or modifies) a metadatum for the specified QID path.
 Its arguments are QID path, metadata type, name, and value.
 .TP
-.I setmstruct
+.B setmstruct
 Explicitly sets the fields of a specified metadatum.
 Useful mostly to do very low-level repairs on a mangled file
 system.
 .TP
-.I setqhash
+.B setqhash
 Points a QID hash table entry to a specified metadatum.
 .TP
-.I snap
+.B snap
 Creates a file system snapshot when using
 .IR snap (3)
 and when using a dump file system.
@@ -245,10 +247,10 @@
 is the empty string.
 For subsequent snapsthots it takes on the values: 1, 2, ... 9.
 .TP
-.I super
+.B super
 Prints a summary of the file system super block.
 .TP
-.I sync
+.B sync
 Flushes any modified blocks in the cache.
 .SH EXAMPLES
 Create a file system listening on port 1992 and mount it on