instead of in the Sun specific section.
(Include Files): The GNU linker supports the N_BINCL
optimization. Clarify the N_BINCL value, and what it is used
for.
(Procedures): Document N_FUN with an empty string to mark the end
of a function.
(Typedefs): Mention that Sun compilers may use N_GSYM for a type.
(Sun Differences): Remove this node, as the information is now
elsewhere in the main document.
(Stab Section Basics): Mention that the GNU linker may optimize
stabs and remove the leading N_UNDF symbol.
