elf/dl-lookup.c: Remove obsolete comment about nested function

The nested function referred to has gone away so remove the
comment. Also move the variable declaration down to where other
variables of a similar lifetime are declared for clarity.

2014-04-03  Will Newton  <will.newton@linaro.org>

	* elf/dl-lookup.c (do_lookup_x): Remove comment
	referring to nested function and move variable
	declarations down to before first use.
Factor mmap/munmap of PT_LOAD segments out of _dl_map_object_from_fd et al.
manual: clarify buffer behavior in getline [BZ #5666]

If the user has requested automatic buffer creation, getline may create
it and not free things when an error occurs.  That means the user is
always responsible for calling free() regardless of the return value.

The current documentation does not explicitly cover this which leaves it
slightly ambiguous to the reader.  So clarify things.

URL: https://sourceware.org/bugzilla/show_bug.cgi?id=5666