mh-letter-skip-leading-whitespace-in-header-field
mh-letter-skip-leading-whitespace-in-header-field is an autoloaded Lisp function in `mh-utils.el
'.
(mh-letter-skip-leading-whitespace-in-header-field)
Skip leading whitespace in a header field.
If the header field doesn't have at least one space after the
colon then a space character is added.