typo typo fixes fixes

ChangeLog

contrib/fixinc/regex.c

etc/make-stds.texi

etc/standards.texi

gcc/ChangeLog

gcc/ChangeLog.10

gcc/ChangeLog.11

gcc/ChangeLog.lib

gcc/NEWS

gcc/PROJECTS

gcc/README.DWARF

gcc/README.X11

gcc/c-common.c

gcc/c-decl.c

gcc/c-lex.c

gcc/c-typeck.c

gcc/cccp.c

gcc/config/alpha/alpha.c

gcc/config/alpha/alpha.h

gcc/config/alpha/alpha.md