fix(cmd[hg,svn]): Fix argument flag passing

[tony]

No description provided.

[codecov]

Codecov Report

Merging #365 (f4082b8) into master (dc9f7f4) will not change coverage.
The diff coverage is 0.00%.

❗ Current head f4082b8 differs from pull request most recent head 126cbf3. Consider uploading reports for the commit 126cbf3 to get more accurate results

@@           Coverage Diff           @@
##           master     #365   +/-   ##
=======================================
  Coverage   70.26%   70.26%           
=======================================
  Files          21       21           
  Lines        1860     1860           
=======================================
  Hits         1307     1307           
  Misses        553      553           

Impacted Files	Coverage Δ
libvcs/cmd/hg.py	69.73% <0.00%> (ø)
libvcs/cmd/svn.py	52.23% <0.00%> (ø)

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update dc9f7f4...126cbf3. Read the comment docs.