Fix bug with RPVersion function call

Signed-off-by: Ian Bell <ian.h.bell@gmail.com>
Merge branch 'master' into asan_rpversion
Increase length of string passed to RPversion function

Signed-off-by: Ian Bell <ian.h.bell@gmail.com>
Merge pull request #360 from CoolProp/asan_rpversion

RPversion call needs to take in a longer string than it should require