The setlocal() function call is not needed, but triggers a bug in the
TITAN's float2str, log, and ttcn2string functions. The setlocal()
call breaks the float to string conversion on some locals.

The f_EPTF_StatCapture_get_time function called with format
specifier: either "%Y-%m-%d_%H.%M.%S" or "%Y-%m-%d-%H:%M:%S"
None of the local dependent.

Change-Id: Id4d4efd197ffeac3c0db2990a118ad77dcce5961