Remove trailing whitespace

An unusual quirk of git is that it tends not to like trailing whitespace
at the end of lines, and trailing blank lines at the end of a file.  It
messes with the word diffs a bit I think.  Anyway, it's easily removed,
so I've removed it.

scripts/tools/a2server-aliases.txt

@@ -75,12 +75,3 @@ alias a2files-share="sudo sed -i 's/^\/media\/A2SHARED\/A2FILES\ A2FILES options
 alias a2files-unshare="sudo sed -i 's/^#share2/\/media\/A2SHARED\/A2FILES\ A2FILES options:prodos\ casefold:toupper/' /usr/local/etc/netatalk/AppleVolumes.default; [[ -d /media/A2SHARED/A2FILES ]] || mkdir /media/A2SHARED/A2FILES"
 
 alias showalias="alias | cut -d= -f 1 | cut -d' ' -f2 | more"
-
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scripts/tools/a2server-help.txt

@@ -83,4 +83,3 @@ afpsync: register files introduced outside of AFP with netatalk
 mkatinit: set up network boot configuration files
 cppo: catalog and copy files from ProDOS image file (slow, but works)
   (add -h to show help for the above four commands, e.g. "afptype -h")
-

scripts/tools/cppo.txt

@@ -879,4 +879,3 @@ else:
     processDir(2)
     if not g.DIR:
         syncExit()
-

scripts/tools/mkatinit.txt

@@ -283,4 +283,3 @@ while : ; do
 done
 
 echo
-