I noticed that if find_first_wholeword() is called with word at the very
beginning of p, we will deref *(p - 1) to see if it is a word boundary.
Fix by considering p = p0 to be a word boundary.
Signed-off-by: Dwight Engen <dwight.engen@oracle.com>
Signed-off-by: Serge Hallyn <serge.hallyn@ubuntu.com>