[Bug-AUCTeX] delete-trailing-whitespace delete non-whitespace characters!!

[Thomas H. Kittelmann]

Hi there,

In my latex file in auctex mode I have tilde (~) characters at the end of 
lines. M-x delete-trailing-whitespace removes these along with the 
whitespace.

Simple example tex file follows:

----- simple.tex (before delete-trailing-whitespace) -----
bla ~ bla
bla bla ~
bla ~ bla ~ ~
bla bla
----------------------------------------------------------

----- simple.tex (after delete-trailing-whitespace) -----
bla ~ bla
bla bla
bla ~ bla
bla bla
----------------------------------------------------------

Cheers,
Thomas

ps. I reported this first as an emacs bug, but RMS asked me to report it 
as an auctex bug instead.

pps. Choosing "Report AUCTeX Bug" from the menu autostarts a mail to 
address@hidden instead of address@hidden I guess this is not 
intentional?

ppps. System info follows:

Bug present in all configurations below:

  Mandriva 2006, auctex 11.51
  RHEL3, auctex 11.53
  RHEL4, auctex 11.14

No, I dont know why the RHEL4 version installed here is older than the 
RHEL3 one :-)