Replace abort with Py_FatalError.

Modules/regexpr.c

@@ -1243,7 +1243,7 @@ char *re_compile_pattern(unsigned char *regex, int size, regexp_t bufp)
 		}
 		case Rquote:
 		{
-			abort();
+			Py_FatalError("Rquote");
 			/*NOTREACHED*/
 		}
 		case Rbol:

Objects/object.c

@@ -1782,7 +1782,7 @@ none_dealloc(PyObject* ignore)
 	/* This should never get called, but we also don't want to SEGV if
 	 * we accidently decref None out of existance.
 	 */
-	abort();
+	Py_FatalError("deallocating None");
 }