Description of problem:
When the --non-decimal-data option is used and a variable gets assigned at the
command line a non-decimal value, gawk crashes.

Version-Release number of selected component (if applicable):
gawk-3.1.4-5

How reproducible:
always

Steps to Reproduce:
1.run gawk --non-decimal-data -v a=0x1 'BEGIN { print a+0 }'
2.
3.
  
Actual results:
gawk: fatal error: internal error
Aborted

(since gawk catches SIGSEGV)

Expected results:
1

Additional info:
I'll attach a patch.  The localeconv() call must in any case be moved before the
loop initializing the variables.  If the setlocale() call, which also is moved,
must really come as late as it did, the patch must be changed to switch back
after the localeconv() call.