NO-JIRA: Fix clang compile error: umask(0) < 0
NO-JIRA: Fix clang compile error: umask(0) < 0

umask() returns the previous mask bits, an unsigned value, not an error code.
The < 0 test is always false

mgoulish/qpid-dispatch,dskarbek/qpid-dispatch,bhardesty/qpid-dispatch,apache/dispatch,dskarbek/qpid-dispatch,ChugR/qpid-dispatch,ted-ross/qpid-dispatch,ted-ross/qpid-dispatch,bhardesty/qpid-dispatch,ted-ross/qpid-dispatch,ChugR/qpid-dispatch,lulf/qpid-dispatch,apache/dispatch,lulf/qpid-dispatch,kgiusti/dispatch,lulf/qpid-dispatch,lulf/qpid-dispatch,mgoulish/qpid-dispatch,ganeshmurthy/qpid-dispatch,adel-boutros/qpid-dispatch,ChugR/qpid-dispatch,apache/dispatch,lulf/qpid-dispatch,dskarbek/qpid-dispatch,bhardesty/qpid-dispatch,ganeshmurthy/qpid-dispatch,alanconway/dispatch,mgoulish/qpid-dispatch,adel-boutros/qpid-dispatch,alanconway/dispatch,lulf/qpid-dispatch,ChugR/qpid-dispatch,adel-boutros/qpid-dispatch,apache/dispatch,alanconway/dispatch,apache/qpid-dispatch,mgoulish/qpid-dispatch,ganeshmurthy/qpid-dispatch,dskarbek/qpid-dispatch,ted-ross/qpid-dispatch,bhardesty/qpid-dispatch,ErnieAllen/qpid-dispatch,bhardesty/qpid-dispatch,kgiusti/dispatch,apache/qpid-dispatch,dskarbek/qpid-dispatch,kgiusti/dispatch,dskarbek/qpid-dispatch,ChugR/qpid-dispatch,alanconway/dispatch,ganeshmurthy/qpid-dispatch,kgiusti/dispatch,lulf/qpid-dispatch,adel-boutros/qpid-dispatch,mgoulish/qpid-dispatch,apache/dispatch,apache/qpid-dispatch,adel-boutros/qpid-dispatch,apache/qpid-dispatch,apache/dispatch,ErnieAllen/qpid-dispatch,bhardesty/qpid-dispatch,mgoulish/qpid-dispatch,apache/dispatch,dskarbek/qpid-dispatch,bhardesty/qpid-dispatch,ChugR/qpid-dispatch,apache/qpid-dispatch,kgiusti/dispatch,apache/qpid-dispatch,ganeshmurthy/qpid-dispatch,ErnieAllen/qpid-dispatch,ted-ross/qpid-dispatch,ErnieAllen/qpid-dispatch,ErnieAllen/qpid-dispatch,ganeshmurthy/qpid-dispatch,adel-boutros/qpid-dispatch,ErnieAllen/qpid-dispatch,ted-ross/qpid-dispatch,adel-boutros/qpid-dispatch,kgiusti/dispatch