Update EXAMPLES section in manpage

+ Change command line examples to use bold.
+ Change flags to use bold and parameters to use italics.
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@ -714,56 +714,56 @@ $ exiv2 -pv --grep lens/i http://clanmills.com/Stonehenge.jpg
.ne 40
.SH EXAMPLES
.nf
$ exiv2 *.jpg
\fB$ exiv2 *.jpg\fP
.fi
Prints a summary of the Exif information for all JPEG files in the directory. The summary report is rather brief and presentation does not use the Family.Group.Tag convention.
Prints a summary of the Exif information for all JPEG files in the directory. The summary is brief and does not use the Family.Group.Tag format.
.sp 1
If you use --grep pattern, the default becomes -pa. See -g/grep above.
.sp 2
.nf
$ exiv2 -g Date http://clanmills.com/Stonehenge.jpg
\fB$ exiv2 -g Date http://clanmills.com/Stonehenge.jpg\fP
.fi
If you use \fB--grep\fP \fIkey\fP, the default output becomes \fB--print\fP \fIa\fP
.sp 1
.nf
$ exiv2 \-pi image.jpg
\fB$ exiv2 \-pi image.jpg\fP
.fi
Prints the IPTC metadata of the image.
.sp 1
.nf
$ exiv2 rename img_1234.jpg
\fB$ exiv2 rename img_1234.jpg\fP
.fi
Renames img_1234.jpg (taken on 13\-Nov\-05 at 22:58:31) to 20051113_225831.jpg
.sp 1
.nf
$ exiv2 \-r'\:basename\:_%Y%m' rename img_1234.jpg
\fB$ exiv2 \-r'\:basename\:_%Y%m' rename img_1234.jpg\fP
.fi
Renames img_1234.jpg to img_1234_200511.jpg
.sp 1
.nf
$ exiv2 \-et img1.jpg img2.jpg
\fB$ exiv2 \-et img1.jpg img2.jpg\fP
.fi
Extracts the Exif thumbnails from the two files into img1\-thumb.jpg
and img2\-thumb.jpg.
.sp 1
.nf
$ exiv2 \-it img1.jpg img2.jpg
\fB$ exiv2 \-it img1.jpg img2.jpg\fP
.fi
Inserts (copies) metadata from img1.exv to img1.jpg and from img2.exv
to img2.jpg.
.sp 1
.nf
$ exiv2 \-ep1,2 image.jpg
\fB$ exiv2 \-ep1,2 image.jpg\fP
.fi
Extracts previews 1 and 2 from the image to the files image\-preview1.jpg
Extracts previews 1 and 2 from image.jpg to the files image\-preview1.jpg
and image\-preview2.jpg.
.sp 1
.nf
$ exiv2 \-eiX image.jpg
\fB$ exiv2 \-eiX image.jpg\fP
.fi
Extracts IPTC datasets into an XMP sidecar file image.xmp and in the
process converts them to "IPTC Core" XMP schema.
.sp 1
.nf
$ exiv2 \-iixX image.jpg
\fB$ exiv2 \-iixX image.jpg\fP
.fi
Inserts IPTC and XMP metadata from an XMP sidecar file image.xmp into
image.jpg. The resulting IPTC datasets are converted from the "IPTC
@ -772,12 +772,12 @@ format. The inserted XMP properties include those in the "IPTC Core"
XMP schema.
.sp 1
.nf
$ exiv2 \-M"set Exif.Photo.UserComment charset=Ascii New Exif comment" image.jpg
\fB$ exiv2 \-M"set Exif.Photo.UserComment charset=Ascii New Exif comment" image.jpg\fP
.fi
Sets the Exif comment to an ASCII string.
.sp 1
.nf
$ exiv2 \-M"set Exif.GPSInfo.GPSLatitude 4/1 15/1 33/1" \\ \-M"set Exif.GPSInfo.GPSLatitudeRef N" image.jpg
\fB$ exiv2 \-M"set Exif.GPSInfo.GPSLatitude 4/1 15/1 33/1" \\ \-M"set Exif.GPSInfo.GPSLatitudeRef N" image.jpg\fP
.fi
Sets the latitude to 4 degrees, 15 minutes and 33 seconds north. The
Exif standard stipulates that the GPSLatitude tag consists of three
@ -786,7 +786,7 @@ and GPSLatitudeRef contains either 'N' or 'S' for north or south
latitude respectively.
.sp 1
.nf
$ exiv2 \-l/tmp -S.CRW insert /data/*.JPG
\fB$ exiv2 \-l/tmp -S.CRW insert /data/*.JPG\fP
.fi
Copy all metadata from CRW files in the /tmp directory to JPG files
with corresponding basenames in the /data directory. Note that this