CVS log for dietlibc/libugly/asprintf.c

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Default branch: MAIN

remove most gcc 7 warnings

shave off a few bytes from parselib by removing the exit code from
__prepare_parse, which was not used anyway because you could see whether
it worked by looking at the struct state afterwards.  Uwe Ohse noticed
this.
Also, fix asprintf, which relied on vsnprintf to not write anything when
passed a NULL pointer.  This was no longer the case after Olaf redid the
printf engine.

start using __attribute__((malloc)) to improve tell the gcc 3 optimizer
that a function returns a malloced pointer, i.e. the pointer can't alias
any existing data.

remove va_end from asprintf, save a few bytes.

start getting rid of kernel headers.

add asprintf.