[PATCH] Add startswith function and use it instead of CONST_STRNEQ.

[Tom Tromey]

>>>>> "Alan" == Alan Modra via Binutils <binutils@sourceware.org> writes:

Alan> Forcing gdb to remove their startswith is a bit rude.

FWIW I think it would be fine, assuming it compiles, considering that
the functions have identical intended semantics.

Tom