* src/SDCCmain.c (linkEdit): fixed buffer overflow for gbz80

* src/SDCCmain.c (linkEdit): fixed buffer overflow for gbz80
* support/regression/Makefile: inter-port-clean is no longer nesessary, the
temp files are in the port dir; clean the gen/test directory when
generating new test.c
* support/regression/ports/host/spec.mk: defined OBJEXT for target clean
* support/regression/tests/vaargs.c: fixed gcc 3.3 warning
* support/regression/tests/zeropad.c: added

git-svn-id: https://sdcc.svn.sourceforge.net/svnroot/sdcc/trunk/sdcc@2606 4a8a32a2-be11-0410-ad9d-d568d2c75423