clang-tidy: loop conversion

Found with modernize-loop-convert

Signed-off-by: Rosen Penev <rosenp@gmail.com>

src/ViewTask.cpp

@@ -320,8 +320,8 @@ std::string ViewTask::render (std::vector <Task>& data, std::vector <int>& seque
 
       if (obfuscate)
         if (_columns[c]->type () == "string")
-          for (unsigned int line = 0; line < cells[c].size (); ++line)
-            cells[c][line] = obfuscateText (cells[c][line]);
+          for (auto& line : cells[c])
+            line = obfuscateText (line);
     }
 
     // Listing breaks are simply blank lines inserted when a column value
@@ -329,7 +329,7 @@ std::string ViewTask::render (std::vector <Task>& data, std::vector <int>& seque
     if (s > 0 &&
         _breaks.size () > 0)
     {
-      for (auto& b : _breaks)
+      for (const auto& b : _breaks)
       {
         if (data[sequence[s - 1]].get (b) != data[sequence[s]].get (b))
         {