Patch to use concat instead of xmalloc/sprintf for JAVA dir

[Per Bothner]

"Kaveh R. Ghazi" <ghazi@caip.rutgers.edu> writes:

> 2001-04-19  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>
> 
> 	* jvspec.c (lang_specific_driver): Fix memory allocation
> 	deficit, by using concat in lieu of xmalloc/sprintf.

> Bootstrapped on solaris2.7, no regressions.  Ok to install?

You have my blessing.  One detail:  I notice gcc.c uses NULL_PTR
rather than NULL for the terminating argument to concat.  I don't
know which style is preferred.
-- 
	--Per Bothner
per@bothner.com   http://www.bothner.com/~per/