Bugfix + changing cflags

libs/Makefile

@@ -1,7 +1,7 @@
 PYTHON=/usr/bin/python3
-CFLAGS=-Wall -Werror -O0 -g
+#CFLAGS=-Wall -Werror -O0 -g
+CFLAGS=-Wall -Werror
 CC=gcc $(CFLAGS) 
-#CFLAGS=-Wall -Werror
 
 all: cturmit*.so
 

libs/cturmit.c

@@ -174,8 +174,8 @@ but %ld found", sz);
 			asc_str = PyUnicode_AsASCIIString(
 						PyList_GetItem(keys, i));
 			strncat(err_msg,
-				(char*)PyBytes_AsString(asc_str),128);
-			strncat(err_msg, "', '", 128);
+				(char*)PyBytes_AsString(asc_str),127);
+			strncat(err_msg, "', '", 127);
 		}
 		Py_DECREF(keys);
 		strncat(err_msg, "'", 128);