do not mask lock timeout or other errors on WAL flush but report them instead of an "internal error" (#4721)
do not mask lock timeout or other errors on WAL flush but report them instead of an "internal error" (#4721)


Simran-B/arangodb,arangodb/arangodb,graetzer/arangodb,fceller/arangodb,graetzer/arangodb,arangodb/arangodb,graetzer/arangodb,arangodb/arangodb,Simran-B/arangodb,graetzer/arangodb,fceller/arangodb,graetzer/arangodb,Simran-B/arangodb,arangodb/arangodb,fceller/arangodb,wiltonlazary/arangodb,fceller/arangodb,wiltonlazary/arangodb,Simran-B/arangodb,wiltonlazary/arangodb,Simran-B/arangodb,arangodb/arangodb,graetzer/arangodb,Simran-B/arangodb,Simran-B/arangodb,graetzer/arangodb,fceller/arangodb,fceller/arangodb,arangodb/arangodb,graetzer/arangodb,wiltonlazary/arangodb,graetzer/arangodb,arangodb/arangodb,fceller/arangodb,wiltonlazary/arangodb,wiltonlazary/arangodb,fceller/arangodb,wiltonlazary/arangodb,wiltonlazary/arangodb,Simran-B/arangodb,fceller/arangodb,fceller/arangodb,graetzer/arangodb,Simran-B/arangodb,graetzer/arangodb,graetzer/arangodb,arangodb/arangodb,graetzer/arangodb,graetzer/arangodb,Simran-B/arangodb