[Patch, fortran] Fix PR19101 missing & in character continuation not caught

[Jerry DeLisle]

:REVIEWPATCH:

The attached is a revised patch following example of Steve's evil tab.  You will 
see the tabs flag in there.  I won't commit this until after Steve commits his 
so we don't bump into each other.  Whats nice about this is the compiler takes a 
good approach when the ampersand is missing and continues the string at the 
first non-whitespace character.  If -pedantic is given, it does the same thing 
but issues a warning allowing users to fix if they wish.

I think this is a good way to go.  OK for trunk and 4.1.1?  I will commit after 
Steve's tab error patch.

2006-03-08  Jerry DeLisle  <jvdelisle@gcc.gnu.org>

	PR fortran/19101
	* gfortran.h: Add flag_ampersand.
	* options.c (gfc_init_options): Initialize flag_ampersand.
	(gfc_post_options): Set the flag if pedantic.
	* scanner.c (gfc_next_char_literal): Add test for missing '&' in
	continued character constant and give warning if missing and
	pedantic.
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