Ignore SIGPIPE is some of the tools used via bugreport

 adb bugreport > b & sleep 5; kill $?
will show that a bunch of tools will SIGPIPE when trying to output data
which is normal.
We don't have a way on linux (bsd yes), to set NOSIGPIPE on the file desc
passed down via fork/exec.

Bug: 6447319
Change-Id: I25b30a823addcff89d252f162d0a07035d4fdd3f
diff --git a/cmds/dumpsys/dumpsys.cpp b/cmds/dumpsys/dumpsys.cpp
index 7dad6b6..c9fcc00 100644
--- a/cmds/dumpsys/dumpsys.cpp
+++ b/cmds/dumpsys/dumpsys.cpp
@@ -28,6 +28,7 @@
 
 int main(int argc, char* const argv[])
 {
+    signal(SIGPIPE, SIG_IGN);
     sp<IServiceManager> sm = defaultServiceManager();
     fflush(stdout);
     if (sm == NULL) {