Log Message:
Switch to new master site, use provided .tar.gz instead of previous .tar
and adapt distinfo.

Change between .tar and .tar.gz:
diff -r tar/szip-2.0/config/gnu-flags targz/szip-2.0/config/gnu-flags
129c129
<       CFLAGS="$CFLAGS $ARCH -ansi -pedantic -Wall -W -Wundef -Wshadow \ 
-Wpointer-arith -Wbad-function-cast -Wcast-qual -Wcast-align -Wwrite-strings \ 
-Wconversion -Wsign-compare -Waggregate-return -Wstrict-prototypes \ 
-Wmissing-prototypes -Wmissing-declarations -Wredundant-decls -Wnested-externs \ 
-Winline"
---
>       CFLAGS="$CFLAGS  -ansi -pedantic -Wall -W -Wundef -Wshadow \ 
-Wpointer-arith -Wbad-function-cast -Wcast-qual -Wcast-align -Wwrite-strings \ 
-Wconversion -Wsign-compare -Waggregate-return -Wstrict-prototypes \ 
-Wmissing-prototypes -Wmissing-declarations -Wredundant-decls -Wnested-externs \ 
-Winline"
Only in targz/szip-2.0/config: gnu-flags.old