Description:
    Bring changes from Coverity branch back to trunk:

r20914:
    Use HDstrncpy and HDstrncat! --gh

20915:
    Use HDstrncpy and HDstrncat! --gh

Tested on:
    Mac OSX/64 10.9.3 (amazon) w/gcc 4.9.0, C++, FORTRAN & parallel
    (too minor to require h5committest)


git-svn-id: https://svn.hdfgroup.uiuc.edu/hdf5/trunk@25215 dab4d1a6-ed17-0410-a064-d1ae371a2980