Junos: reduce blast radius of missing quote in hierarchical configs

[dhalperi]

Junos requires quoted strings to be on one line anyway, as far as I can tell online and in configs.

[batfish-bot]

This change is 

[arifogel]

Reviewed 3 of 3 files at r1, all commit messages.
Reviewable status: complete! all files reviewed, all discussions resolved (waiting on @dhalperi)

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 72.70%. Comparing base (a4825c3) to head (598ef7b).
Report is 1 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #9172      +/-   ##
==========================================
- Coverage   72.71%   72.70%   -0.02%     
==========================================
  Files        3313     3313              
  Lines      169906   169906              
  Branches    20013    20013              
==========================================
- Hits       123549   123526      -23     
- Misses      37196    37215      +19     
- Partials     9161     9165       +4     

see 7 files with indirect coverage changes