[2947] Delete trailing whitespace

src/lib/datasrc/factory.cc

@@ -83,7 +83,7 @@ LibraryContainer::LibraryContainer(const std::string& name) {
     if (ds_lib_ == NULL) {
         // This may cause the filename to appear twice in the actual
         // error, but the output of dlerror is implementation-dependent
-        isc_throw(DataSourceLibraryError, "dlopen failed for " << name << 
+        isc_throw(DataSourceLibraryError, "dlopen failed for " << name <<
                                           ": " << dlerror());
     }
 }