Merge branch 'dd/mailinfo-quoted-cr'

"git mailinfo" (hence "git am") learned the "--quoted-cr" option to
control how lines ending with CRLF wrapped in base64 or qp are
handled.

* dd/mailinfo-quoted-cr:
  am: learn to process quoted lines that ends with CRLF
  mailinfo: allow stripping quoted CR without warning
  mailinfo: allow squelching quoted CRLF warning
  mailinfo: warn if CRLF found in decoded base64/QP email
  mailinfo: stop parsing options manually
  mailinfo: load default metainfo_charset lazily

contrib/completion/git-completion.bash

@@ -1333,6 +1333,7 @@ __git_whitespacelist="nowarn warn error error-all fix"
 __git_patchformat="mbox stgit stgit-series hg mboxrd"
 __git_showcurrentpatch="diff raw"
 __git_am_inprogress_options="--skip --continue --resolved --abort --quit --show-current-patch"
+__git_quoted_cr="nowarn warn strip"
 
 _git_am ()
 {
@@ -1354,6 +1355,10 @@ _git_am ()
 		__gitcomp "$__git_showcurrentpatch" "" "${cur##--show-current-patch=}"
 		return
 		;;
+	--quoted-cr=*)
+		__gitcomp "$__git_quoted_cr" "" "${cur##--quoted-cr=}"
+		return
+		;;
 	--*)
 		__gitcomp_builtin am "" \
 			"$__git_am_inprogress_options"