Applying Debians 10-manpage-synopsis.dpatch from Daniel Baumann

<daniel@debian.org> to fix manpage synopsis:

  * List alternative binary names in manpage synopsis (Closes: #284983).

Signed-off-by: Daniel Baumann <mail@daniel-baumann.ch>

dosfsck/dosfsck.8

@@ -3,7 +3,7 @@
 dosfsck \- check and repair MS-DOS file systems
 .SH SYNOPSIS
 .ad l
-.B dosfsck
+.B dosfsck|fsck.msdos|fsck.vfat
 .RB [ \-aAflnrtvVwy ]
 .RB [ \-d\ \fIpath\fB\ \-d\ \fI...\fB ]
 .RB [ \-u\ \fIpath\fB\ \-u\ \fI...\fB ]

mkdosfs/mkdosfs.8

@@ -4,7 +4,7 @@
 .B mkdosfs
 \- create an MS-DOS file system under Linux
 .SH SYNOPSIS
-.B mkdosfs
+.B mkdosfs|mkfs.msdos|mkfs.vfat
 [
 .B \-A
 ]