--run regression - error when empty line or command at end of the file

When using --run like

bin/drill-embedded --run="myfile.req"

If "myfile.req" contains extra lines (empty or comment) after the last SQL DRILL request, an error appear.

Error: PARSE ERROR: Encountered "<EOF>" at line 1, column 4.

Note that empty lines or comment lines in the middle of the file (ie between 2 DRILL requests or at the beginning of the file) don't make any problem.

This problem appeared in 1.15.0 did not exists in 1.14.0