Hack around b/36066697.

Avoid calling libbinder's static destructors by calling _exit instead
of returning in main.

Bug: http://b/36066697
Test: treehugger
Change-Id: I81dd50453f1ea64d97ec97d207fff732b3c62512
diff --git a/cmds/screencap/screencap.cpp b/cmds/screencap/screencap.cpp
index 5fedc9e..c4f17fa 100644
--- a/cmds/screencap/screencap.cpp
+++ b/cmds/screencap/screencap.cpp
@@ -214,5 +214,7 @@
     if (mapbase != MAP_FAILED) {
         munmap((void *)mapbase, mapsize);
     }
-    return 0;
+
+    // b/36066697: Avoid running static destructors.
+    _exit(1);
 }