Trick bugprone exception escape

Catching exceptions in main is annoying, because it prevents core dumps
from happening in systemd.  We initially did this so we could enable
the bugprone-exception-escape check [1].  That documentation shows
that

"Functions declared explicitly with noexcept(false) or throw(exception)
will be excluded from the analysis,"

This seems like a better idea than catching all exceptions and printing.

Tested: bmcweb launches normally.  clang-tidy passes.

[1] https://clang.llvm.org/extra/clang-tidy/checks/bugprone/exception-escape.html

Change-Id: I943b3b1c13bcbc21cd18f392cdc7574edf2f809e
Signed-off-by: Ed Tanous <etanous@nvidia.com>
diff --git a/src/webserver_main.cpp b/src/webserver_main.cpp
index c7c7fb4..99b7824 100644
--- a/src/webserver_main.cpp
+++ b/src/webserver_main.cpp
@@ -1,24 +1,6 @@
-
-
-#include "logging.hpp"
 #include "webserver_run.hpp"
 
-#include <exception>
-
-int main(int /*argc*/, char** /*argv*/)
+int main(int /*argc*/, char** /*argv*/) noexcept(false)
 {
-    try
-    {
-        return run();
-    }
-    catch (const std::exception& e)
-    {
-        BMCWEB_LOG_CRITICAL("Threw exception to main: {}", e.what());
-        return -1;
-    }
-    catch (...)
-    {
-        BMCWEB_LOG_CRITICAL("Threw exception to main");
-        return -1;
-    }
+    return run();
 }