CD to WORKDIR is missing in singularity runscript

[Flamefire]

Expected Behavior

ENTRYPOINT command is executed in WORKDIR

Actual Behavior

ENTRYPOINT is executed in HOME

Steps to Reproduce

Convert Dockerfile containing both to singularity file an watch the %runscript section

Possible Fix

Add cd before the command

[vsoch]

Even if change is needed, it's easy enough to fix this issue (and another bug I found) #115