* subversion/libsvn_subr/cache-membuffer.c   (entry_t): improve docstring
* subversion/libsvn_subr/cache-membuffer.c
  (entry_t): improve docstring

Suggested by: danielsh

jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion