* iconv/skeleton.c: Reset outbuf for next round of the loop.
Reported by Owen Taylor <otaylor@redhat.com>.
* iconv/Makefile (tests): Add tst-iconv3.
* iconv/tst-iconv3.c: New file.
* iconvdata/ibm930.c: Fix handling of state. Optimize a bit.
* iconvdata/ibm933.c: Likewise.
* iconvdata/ibm935.c: Likewise.
* iconvdata/ibm937.c: Likewise.
* iconvdata/ibm939.c: Likewise.
* iconvdata/ibm930.h: Adjust single byte table for optimization.
* iconvdata/ibm933.h: Likewise.
* iconvdata/ibm935.h: Likewise.
* iconvdata/ibm939.h: Likewise.