Manual pages: raw.8: Minor formatting and wording fixes

Signed-off-by: Michael Kerrisk (man-pages) <mtk.manpages@gmail.com>

disk-utils/raw.8

@@ -34,10 +34,10 @@ device numbers, or as a path name
 to an existing block device file.
 .PP
 The bindings already in existence can be queried with the
-.I \-q
+.B \-q
 option, which is used either with a raw device filename to query that one
 device, or with the
-.I \-a
+.B \-a
 option to query all bound raw devices.
 .PP
 Unbinding can be done by specifying major and minor 0.
@@ -66,8 +66,8 @@ will query an existing binding instead of setting a new one.
 .TP
 \fB\-a\fR, \fB\-\-all\fR
 With
-.B \-q
-, specify that all bound raw devices should be queried.
+.BR \-q ,
+specify that all bound raw devices should be queried.
 .TP
 \fB\-h\fR, \fB\-\-help\fR
 Display help text and exit.
@@ -78,20 +78,23 @@ Display version information and exit.
 .SH NOTES
 Rather than using raw devices applications should prefer
 .BR open (2)
-devices, such as /dev/sda1, with the O_DIRECT flag.
+devices, such as
+.IR /dev/sda1 ,
+with the
+.B O_DIRECT
+flag.
 .SH BUGS
 The Linux
 .BR dd (1)
 command should be used without the \fBbs=\fR option, or the blocksize
 needs to be a multiple of the sector size of the device (512 bytes usually),
 otherwise it will fail with "Invalid Argument" messages (EINVAL).
-
 .PP
 Raw I/O devices do not maintain cache coherency with the Linux block
 device buffer cache.  If you use raw I/O to overwrite data already in
 the buffer cache, the buffer cache will no longer correspond to the
 contents of the actual storage device underneath.  This is deliberate,
-but is regarded either a bug or a feature depending on who you ask!
+but is regarded as either a bug or a feature, depending on who you ask!
 .SH AUTHORS
 Stephen Tweedie (sct@redhat.com)
 .SH AVAILABILITY