Description of the Issue

Search option 'whole word' does no longer work

Steps to Reproduce the Issue

1. open search dialog, enter text e.g. file
2. chose option to search for whole word
3. perform the search

Expected Behavior

Search result shows only locations with the full word e.g. file and not files

Actual Behavior

Search result shows all occurrences

Debug Information

Notepad++ v7.9.5 (64-bit)
Build time : Mar 21 2021 - 02:13:17
Path : C:\Program Files\Notepad++\notepad++.exe
Admin mode : OFF
Local Conf mode : OFF
OS Name : Windows 10 Enterprise (64-bit)
OS Version : 1909
OS Build : 18363.1377
Current ANSI codepage : 1252
Plugins : AnalysePlugin.dll BetterMultiSelection.dll ComparePlugin.dll Explorer.dll mimeTools.dll NppConverter.dll NppEventExec.dll NppExec.dll NppExport.dll NppGTags.dll NppTextViz.dll NppXmlTreeviewPlugin.dll