drqs-169701407: 'bdlma_concurrentfixedpool.cpp': Fix 'volatile' warning. (#3786)
drqs-169701407: 'bdlma_concurrentfixedpool.cpp': Fix 'volatile' warning. (#3786)

* drqs-169701407: 'bdlma_concurrentfixedpool.cpp': Fix 'volatile' warning.

* drqs-169701407: 'bdlma_concurrentfixedpool.cpp': Fix 'volatile' warning.
bloomberg/bde,bloomberg/bde,bloomberg/bde,bloomberg/bde,bloomberg/bde