fix insert lines test
{"message":"range suggestion test (remove)","location":{"path":"_testdata/suggestions.txt","range":{"start":{"line":8,"column":5},"end":{"line":8,"column":7}}}, "suggestions": [{"range":{"start":{"line":8,"column":5},"end":{"line":8,"column":7}}, "text": ""}]}
{"message":"range suggestion test (remove line-break)","location":{"path":"_testdata/suggestions.txt","range":{"start":{"line":10,"column":5},"end":{"line":11,"column":1}}}, "suggestions": [{"range":{"start":{"line":10,"column":5},"end":{"line":11,"column":1}}, "text": ""}]}
{"message":"suggestion test (remove line)","location":{"path":"_testdata/suggestions.txt","range":{"start":{"line":13}}}, "suggestions": [{"range":{"start":{"line":13}}, "text": ""}]}
-{"message":"suggestion test (insert line)","location":{"path":"_testdata/suggestions.txt","range":{"start":{"line":16,"column":1}}}, "suggestions": [{"range":{"start":{"line":16,"column":1}}, "text": "inserted line 1\ninserted line 2\n"}]}
+{"message":"suggestion test (insert line)","location":{"path":"_testdata/suggestions.txt","range":{"start":{"line":16,"column":1},"end":{"line":16,"column":1}}}, "suggestions": [{"range":{"start":{"line":16,"column":1},"end":{"line":16,"column":1}}, "text": "inserted line 1\ninserted line 2\n"}]}
