Simplify example callbacks

Author: cjbj

examples/webapp.js

@@ -226,11 +226,7 @@ function closePoolAndExit() {
 }
 
 process
-  .on('SIGTERM', function() {
-    closePoolAndExit();
-  })
-  .on('SIGINT', function() {
-    closePoolAndExit();
-  });
+  .on('SIGTERM', closePoolAndExit)
+  .on('SIGINT',  closePoolAndExit);
 
 init();

examples/webappawait.js

@@ -199,11 +199,7 @@ async function closePoolAndExit() {
 }
 
 process
-  .on('SIGTERM', function() {
-    closePoolAndExit();
-  })
-  .on('SIGINT', function() {
-    closePoolAndExit();
-  });
+  .on('SIGTERM', closePoolAndExit)
+  .on('SIGINT',  closePoolAndExit);
 
 init();

examples/webapppromises.js

@@ -219,11 +219,7 @@ function closePoolAndExit() {
 }
 
 process
-  .on('SIGTERM', function() {
-    closePoolAndExit();
-  })
-  .on('SIGINT', function() {
-    closePoolAndExit();
-  });
+  .on('SIGTERM', closePoolAndExit)
+  .on('SIGINT',  closePoolAndExit);
 
 init();