Some case conversion commands don't recognize the apostrophe

[Michael Stutz]

Emacs version: GNU Emacs 20.7.2 (i386-debian-linux-gnu, X toolkit) of Tue Jun 
20 2000 on raven

Some of the commands for changing the case of human-language text do
not recognize the apostrophe character, causing unexpected behavior:

`M-c' (`capitalize-word') does not capitalize a word that is preceded
by an apostrophe when the cursor is at or before the apostrophe;
instead, the cursor moves to just after the word but the word is not
capitalized.

For example, if the cursor is at the beginning of the following line
in an English-text buffer:

        'cause that's just how it is.

Typing "M-c" moves the cursor to the space just after the first word,
but the first word will not be capitalized.


`M-u' (`upcase-word') continues past a word's trailing apostrophe.

For example, if the cursor is at the beginning of the following line
in an English-text buffer:

        mit's

Typing "M-u" moves the cursor to just after the "'s" and both the word
and its trailing "s" is converted to uppercase letters.