fix spelling and unify whitespace

doc/HOWTO

@@ -1311,7 +1311,7 @@
 
   This means that fred's password is valid, it was last changed on
   03/04/96, it can be changed at any time, it expires after 60 days,
-  fred will not be warned, and and the account won't be disabled when
+  fred will not be warned, and the account won't be disabled when
   the password expires.
 
   This simply means that if fred logs in after the password expires, he
@@ -1487,7 +1487,7 @@
 
   If a user logs into a line that is listed in /etc/dialups, and his
   shell is listed in the file /etc/d_passwd he will be allowed access
-  only by suppling the correct password.
+  only by supplying the correct password.
 
   Another useful purpose for using dial-up passwords might be to setup a
   line that only allows a certain type of connect (perhaps a PPP or UUCP

doc/README.limits

@@ -63,4 +63,3 @@ To completely disable limits for a user, a single dash (-) will do.
 Also, please note that all limit settings are set PER LOGIN.  They are
 not global, nor are they permanent.  Perhaps global limits will come, but
 for now this will have to do ;)
-

doc/README.platforms

@@ -3,7 +3,7 @@
 # This is the current (still incomplete) list of platforms this
 # package has been verified to work on.  Additions (preferably
 # in the format as described below) are welcome.  Thanks!
-# 
+#
 # V: last version reported to work
 # H: host type
 # L: Linux libc version

doc/WISHLIST

@@ -37,4 +37,3 @@ New ideas to add to this list are welcome, too.  --marekm
   per-user configuration, to be executed with run-parts. Some hooks should
   be executed at package install time for existing users, likewise for
   package removal and possibly modification.  (Debian Bug#36019)
-