Remove double underscore in macro guard

See: 4b26110

Author: sourrust

src/lacoconf.h.in

@@ -1,8 +1,8 @@
-#ifndef __LACOCONF_H
-#define __LACOCONF_H
+#ifndef LACOCONF_H
+#define LACOCONF_H
 
 #define LACO_VERSION   "@LACO_VERSION_STRING@"
 #define LACO_LUA_USED  "@LACO_LUA_USED@"
 #define LACO_TIMESTAMP "@LACO_TIMESTAMP@"
 
-#endif /* __LACOCONF_H */
+#endif /* LACOCONF_H */