docs: fix further typos found by misspellings

Additionally to the fixes in commit v2.21-325-g455fe9a,
fix typos in release notes and NEWS.

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

Documentation/releases/v2.13-ReleaseNotes

@@ -192,7 +192,7 @@ fdisk:
 getopt:
    - remove old unused files  [Karel Zak]
 hexdump:
-   - don't use memset with zero lenght  [Karel Zak]
+   - don't use memset with zero length  [Karel Zak]
 hwclock:
    - add --rtc=<path> option and support for /dev/rtc0  [Karel Zak]
    - add support for audit system  [Karel Zak]

Documentation/releases/v2.19-ReleaseNotes

@@ -318,12 +318,12 @@ libmount:
    - add mntent.h compatible stuff  [Karel Zak]
    - add mount(2) and /sbin/mount.<type> support  [Karel Zak]
    - add mount(8) sample  [Karel Zak]
-   - add mtab managment to context API  [Karel Zak]
+   - add mtab management to context API  [Karel Zak]
    - add new debug messages, fix umount return code  [Karel Zak]
    - add new psetudo filesystems  [Karel Zak]
    - add new pseudo filesystems  [Karel Zak]
    - add routines for uid=, git= and context= translation  [Karel Zak]
-   - add support for mtab managment  [Karel Zak]
+   - add support for mtab management  [Karel Zak]
    - add uhelper=, improve mnt_split_optstr()  [Karel Zak]
    - add umount(2) support  [Karel Zak]
    - add unit test for mnt_copy_fs()  [Karel Zak]

Documentation/releases/v2.20-ReleaseNotes

@@ -337,7 +337,7 @@ docs:
    - update TODO  [Sami Kerola]
    - update TODO file  [Karel Zak]
    - update TODO file  [Sami Kerola]
-   - update exmaple files  [Karel Zak]
+   - update example files  [Karel Zak]
    - update v2.20 ReleaseNotes  [Karel Zak]
    - uuidgen.1 mention long options  [Sami Kerola]
 elvtune, isosize:

Documentation/releases/v2.21-ReleaseNotes

@@ -750,7 +750,7 @@ mkfs.cramfs:
    - close open file after usage [cppcheck]  [Sami Kerola]
 mkfs.minix:
    - Fix super_set_nzones()  [Maurizio Lombardi]
-   - In Minix V3 filesystems the maximum filename lenght is 60 chars and the dirsize is 64 bytes.  [Maurizio Lombardi]
+   - In Minix V3 filesystems the maximum filename length is 60 chars and the dirsize is 64 bytes.  [Maurizio Lombardi]
    - Some bug fixes  [Maurizio Lombardi]
    - The s_blocksize field of the MinixV3 superblock must be initialized with a valid block size, not the total number of blocks of the device!  [Maurizio Lombardi]
    - The total number of zones is limited to 65536 only on V1 filesystems  [Maurizio Lombardi]

NEWS

@@ -207,7 +207,7 @@ util-linux 2.12n,o
 * lomount: revert patch from 2.12j
 * lptune.8: -T option is obsolete
 * mkswap, mkswap.8, swapon: support labels
-  (use HAVE_BLKID=no as long as the blkid library doesnt support this)
+  (use HAVE_BLKID=no as long as the blkid library doesn't support this)
 * umount: allow user unmounting repeatedly mounted nfs mounts
 
 util-linux 2.12m
@@ -1288,7 +1288,7 @@ Outstanding bugs:
 - login/getty has a denial of service problem.
 - Several places needs a bit more polish.
 - There are a _lot_ of nonfatal warnings when compiling mount.  This will
-  not necesarily be fixed.
+  not necessarily be fixed.
 
 
 util-linux 2.6