Commits


rename got_error_prefix_errno() to got_error_from_errno()


got_error_from_errno -> got_error_prefix_errno also add got_error_prefix_errno2 and got_error_prefix_errno3 which should hopefully all be merged into a single function with variadic args (but can't alloc mem)


check for errors from close(2)


get rid of xmalloc and err functions in buf.c


add unmodified buf.c, buf.h, and diff3.c from OpenRCS