[GRASS5] Files left in /tmp from Init.sh

[Juillerat Philippe]

The previous proposal of solution to remove files left in /tmp directory (when 
GRASS 6.0 or 5.7 is left without command "exit") is not a good idea. To trap 
the signal SIGHUP in particular introduce more problems than it solve.
There is a simplier and better (I think) solution which is:

in etc/Init.sh v 1.58 2005/02/03 02:24:42 hamish

As soon as temporary directory is created:
row 107
+  trap "rm -rf $tmp" 0

row 542
-  rm -rf "$tmp"  # remove session files from tmpdir

After LOCATION and MAPSET are saved in $GISRC
row 549
+  trap "cp $GISRC $GISRCRC ; rm -rf $tmp" 0

row 715
-  trap 2 3 15
+ trap 0 2 3 15

I wait for your suggestions
Thanks
Philippe