Silently ignore failures when preflighting option overrides.

[greg-1-anderson]

Disposition

This pull request:

• [x] Fixes a bug
• [ ] Adds a feature
• [ ] Breaks backwards compatibility
• [ ] Has tests that cover changes

Summary

Preflighting the option overrides broke Drush custom help methods.

[codecov[bot]]

Codecov Report

Merging #302 (648716e) into 4.x (d655383) will decrease coverage by 0.05%. The diff coverage is 66.66%.

:exclamation: Current head 648716e differs from pull request most recent head fbeed52. Consider uploading reports for the commit fbeed52 to get more accurate results

@@             Coverage Diff              @@
##                4.x     #302      +/-   ##
============================================
- Coverage     88.23%   88.19%   -0.05%     
- Complexity      780      781       +1     
============================================
  Files            46       46              
  Lines          2099     2100       +1     
============================================
  Hits           1852     1852              
- Misses          247      248       +1     

Impacted Files	Coverage Δ
src/CommandProcessor.php	91.39% <66.66%> (-1.00%)	:arrow_down:

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