add cvs date in GP status

[Bill Allombert <allomber@math.u-bordeaux.fr>]

Hello PARI cvs users,

if you sometime 'make install' pari CVS version, you may want to apply the
following patch.

This change the GP header to read

          GP/PARI CALCULATOR Version 2.2.4 (development cvs-20020620)
          
(if we are the 2002 06 20 that is) so you know which version you use.
Also if you report a bug we have a better chance to know what happen. It is
easy to recover the CVS tree as of a specific date.

Should I commit it ?? it is a bit too simple-minded.

Bill.

Index: config/version
===================================================================
RCS file: /home/megrez/cvsroot/pari/config/version,v
retrieving revision 1.22
diff -u -r1.22 version
--- config/version      2002/06/12 16:19:17     1.22
+++ config/version      2002/06/20 17:29:16
@@ -10,5 +10,9 @@
 # Status: alpha, beta, released, development
 status='development'

+if test -d CVS; then
+  status=`date +"$status cvs-%Y%m%d"`
+fi
+
 # soname of stable libpari.so is libpari.so.$soname_num
 soname_num=$patch