Warnings about QCharRef deprecated behavior

[Luís Pereira]

With Qt 5.14 one gets a lot of warnings about QCharRef deprecated behavior.

Expected Behavior

no warnings

Current Behavior

The same warning repeated a lot of times:
Using QCharRef with an index pointing outside the valid range of a QString. The corresponding behavior is deprecated, and will be changed in a future version of Qt.

Possible Solution

Steps to Reproduce (for bugs)

1. Run qterminal from the command line with !t 5.14

System Information

• Distribution & Version: not relevat
• Kernel: not relevant
• Qt Version: 5.14
• lxqt-build-tools Version: not relevant
• Package version: git

[Chih-Hsuan Yen]

Didn't notice this as those messages appear in debug builds only. Should be fixed with #337.