* sysdeps/posix/ttyname.c: Make name variable from getttyname function
global (with file scope). Add __libc_subfreeres function to free the
string.
* sysdeps/unix/sysv/linux/ttyname.c: Likewise. Also for buf variable
in ttyname function.
* sysdeps/generic/strtok.c: Remove initializer for olds variable.
* crypt/md5-crypt.c: Let destructor deallocate static buffer.
* iconvdata/sjis.c (from_ucs4_lat1): Handle U005C and U007E by
mapping them to /x5c and /x7e respectively.