Merge pull request #342 from thaJeztah/19.03_backport_sigprocmask

[19.03 backport] Add sigprocmask to default seccomp profile (ENGCORE-981)

profiles/seccomp/default.json

@@ -314,6 +314,7 @@
 				"sigaltstack",
 				"signalfd",
 				"signalfd4",
+				"sigprocmask",
 				"sigreturn",
 				"socket",
 				"socketcall",

profiles/seccomp/seccomp_default.go

@@ -307,6 +307,7 @@ func DefaultProfile() *types.Seccomp {
 				"sigaltstack",
 				"signalfd",
 				"signalfd4",
+				"sigprocmask",
 				"sigreturn",
 				"socket",
 				"socketcall",