includedb: limit get_all_commands() to one result

Author: Sarcasm

compdb/includedb.py

@@ -201,6 +201,8 @@ def get_compile_commands(self, path):
             for compile_command in self.database.get_compile_commands(best):
                 yield compdb.complementer.headerdb.derive_compile_command(
                     path, compile_command)
+                # stop after one compile command
+                break
 
     def get_all_files(self):
         return iter(self.graph.keys())