Badly formed number error with tcsh

Hello,

I found the following problem with nice 2.0.11:

with tcsh

   Marc:~/src/openoffice/oo_641c_src> nice -n -19 bootstrap
   nice: Badly formed number.
   Marc:~/src/openoffice/oo_641c_src> nice -adf
   nice: Badly formed number.
   Marc:~/src/openoffice/oo_641c_src> nice --help
   nice: Badly formed number.
   Marc:~/src/openoffice/oo_641c_src> nice -19 bootstrap
   setpriority: Permission denied.
   Marc:~/src/openoffice/oo_641c_src> nice \-n 19 bootstrap
   nice: Badly formed number.
   Marc:~/src/openoffice/oo_641c_src> nice "-n" 19 bootstrap
   nice: Badly formed number.
   Marc:~/src/openoffice/oo_641c_src> nice "\-n" 19 bootstrap
   \-n: Command not found.
   Marc:~/src/openoffice/oo_641c_src> nice '\-n' 19 bootstrap
   \-n: Command not found.
   Marc:~/src/openoffice/oo_641c_src> nice '-n' 19 bootstrap
   nice: Badly formed number.

nice +19 bootstrap is ok;

nice -19 give me:
  setpriority: Permission denied.

No problem with bash.

I hope it is not a "feature" of tcsh.


My config:
---------

debian woody i386 last apt-get upgrade last week.


GNU bash, version 2.05a.0(1)-release (i386-pc-linux-gnu)
nice (GNU sh-utils) 2.0.11
ii  tcsh                  6.11.00-2.1


Thank you for your good job !

Marc Emery