[Ada] Various clean ups and doc updates

[Arnaud Charlet <charlet at adacore dot com>]

Tested on x86-linux, committed on mainline.

Various small clean ups and documentation updates.

2004-12-07  Thomas Quinot  <quinot@adacore.com>

	* g-socket.ads (Get_Host_By_Address, Get_Host_By_Name): Clarify
	documentation of the behaviour of these functions when passed an IP
	address that has no record in the system hosts database and no reverse
	record in the DNS.

	* cstand.adb, a-tags.ads: Fix typos in comment.

2004-12-07  Robert Dewar  <dewar@adacore.com>

	* exp_ch2.adb, exp_ch3.adb, exp_ch5.adb, exp_ch8.adb,
	exp_ch9.adb, exp_pakd.adb, interfac.ads, sem_ch6.adb,
	sem_ch7.adb, sem_ch10.adb, sem_ch13.adb, sem_ch3.adb,
	s-poosiz.ads: Minor reformatting

	* make.adb: Minor reformatting
	Add some ??? comments asking for more comments

	* s-poosiz.adb: Minor reformatting
	Add comments on alignment requirement

	* sinfo.ads: Remove obsolete comment and fix typo.

2004-12-07  Vincent Celier  <celier@adacore.com>
	    Sergey Rybin  <rybin@adacore.com>

	* gnat_ugn.texi: Update the section "The GNAT Driver and Project
	Files" with the new tool and package names.
	Reformatting to suppress most of the warnings for line too long
	Document the new section "Project Search Path:" in the output of
	gnatls -v.
	Add gnatmetric section

2004-12-07  Vincent Celier  <celier@adacore.com>

	* vms_data.ads: Correct GNAT METRIC qualifiers: -I-, -Idir and
	-gnatec= are not direct switches of gnatmetric. Changed -eis to -eps
	and -eit to -ept. Added qualifier
	/ELEMENT_METRICS=CONSTRUCT_NESTING_MAX for new switch -ec.

Attachment: difs.24
Description: Text document