Additional notes (May, 2009):

At its most recent meeting, the C Committee decided to keep the existing term, “character string literal.”

One possibility for maintaining compatible phraseology with the C Standard would be to replace the occurrences of “ordinary string literal” in 5.13.5 [lex.string] with “character string literal,” instead of the extensive set of changes above.

Another possibility would be to leave the references in Clause 15 [cpp] unchanged and just insert a prefatory comment near the beginning that every occurrence of “character string literal” refers to a string-literal with no prefix. (The use of “ordinary string literal” in the preceding edits is problematic in that the phrase includes raw string literals as well as unprefixed literals.)