-Wparentheses warning in node-editor.cpp

[quesnel]

irritator/app/gui/node-editor.cpp:790:30: warning: operator '?:' has lower precedence than '+'; '+' will be evaluated first
+[-Wparentheses]
      line + (remaining > 0) ? settings.automatic_layout_y_distance : 0.f;
      ~~~~~~~~~~~~~~~~~~~~~~ ^
irritator/app/gui/node-editor.cpp:790:30: note: place parentheses around the '+' expression to silence this warning
      line + (remaining > 0) ? settings.automatic_layout_y_distance : 0.f;
                             ^
      (                     )
irritator/app/gui/node-editor.cpp:790:30: note: place parentheses around the '?:' expression to evaluate it first
      line + (remaining > 0) ? settings.automatic_layout_y_distance : 0.f;