[avr-libc-dev] More doxygen corrections.

[E. Weddington]

This should pretty much cover the rest of the string library.

strnlen.s - The function description and \returns refer to parameters 
s and maxlen when those names aren't used in the prototype. I believe 
it's supposed to refer to the names src and len.

strrchr.s - Again, the description refers to "character c in the 
string s" which I think it should be "character val in the string 
src" to match the prototype.

strlwr.s - Superfluous statement in \returns?: "The pointer is the 
same as that passed in since the operation is perform in place." If 
statement is kept in, then should be "performed".

strlen.s - Description and \returns both refer to variable s, should 
be src, per prototype.

strcmp.s - Description contains redundant sentence about what the 
function returns (same as in \returns section).

strchr.s - Same as strrchr.s above. Description refers to parameters 
c and s, which should be val and src, per prototype.

strcasecmp.s - Same as strcmp.s above. Description contains redundant 
sentence about what the function returns.

memset.s - Description and \returns: Change reference of parameters 
from n, s, and c to len, dest, and val, per prototype. 

memmove.s - Description: Change reference of parameter n to len, per 
prototype.

memcpy.s - Same as memmove.s above. Also change in description: 
"memmove(3)" to "memmove()".

memcmp.s - Again, change n to len in description and \returns.

memchr.s - Change parameter names in description and \returns to 
match the prototype. Remove reference in description and \returns to 
non-existent function memrchr().

memccpy.s - Change parameter names in description and \returns to 
match the prototype.

Hope this helps...

Eric