unicode issue in determine_scm_revision with Perforce

[jdhalimi]

Describe the bug

with Perforce source control

• pytest-monitor crashes if non ASCII / Unicode character is present in commit log under Perforce
• incorrect scm_revision : does not extract p4 change number only but all commit message

To Reproduce Steps to reproduce the behavior:

1. use Perforce SCM
2. put an accent / non ASCII character in commit message
3. run pytest using pytest monitor

Expected behavior ignore commit message retrieving commit message

Stack trace

INTERNALERROR>   File "/xxxxxxxxxxxxxxxxxxxxx/lib/python3.6/site-packages/pytest_monitor/sys_utils.py", line 42, in determine_scm_revision
INTERNALERROR>     return p_out.decode().split('\n')[0]
INTERNALERROR> UnicodeDecodeError: 'utf-8' codec can't decode byte 0xe9 in position 78: invalid continuation byte

Desktop (please complete the following information):

• OS: Linux
• Python version: 3.6
• Pytest version: [e.g. 6.2.3]
• pytest-monitor version: [e.g. 1.6.2]