Fix -data-info-line when source includes column number.

[dawn]

Summary

This fixes an off-by-one bug in CMICmdCmdDataInfoLine::Acknowledge. Given:

LineEntry: \[0x0000000100000f37-0x0000000100000f45\): /path/to/file:123:1

-data-info-line would report the line as 12, omitting the last digit.

[abidh]

Looks good.

lldb/trunk/tools/lldb-mi/MICmdCmdData.cpp

else if (m_lldbResult.GetOutputSize() > 0)
             bOk = miRecordResult.Add(miValueResult3);
             if (!bOk)
                 return MIstatus::failure;
 
             // LineEntry: \[0x0000000100000f37-0x0000000100000f45\): /path/to/file:3[:1]
             //                                                                     ^ -- line
             const size_t nLineStartPos = nFileEndPos + 1;
             const size_t nLineEndPos = rLine.find(':', nLineStartPos);
-            const size_t nLineLen = nLineEndPos != std::string::npos ? nLineEndPos - nLineStartPos - 1
+            const size_t nLineLen = nLineEndPos != std::string::npos ? nLineEndPos - nLineStartPos
                                                                      : std::string::npos;
             const CMIUtilString strLine(rLine.substr(nLineStartPos, nLineLen).c_str());
             const CMICmnMIValueConst miValueConst4(strLine);
             const CMICmnMIValueResult miValueResult4("line", miValueConst4);
             bOk = miRecordResult.Add(miValueResult4);
             if (!bOk)
                 return MIstatus::failure;