cppcheck: error: unrecognized command line option: "--std=c++2a"

[maciekr1234]

What kind of issue is this?

• PlatformIO Core.
  If you’ve found a bug, please provide an information below.

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Configuration

Operating system: Windows 10

PlatformIO Version (platformio --version): PlatformIO Core, version 5.2.0a6

Description of problem

When I use -std=gnu++2a in my build flags and I try to run pio check I get an error:

cppcheck: error: unrecognized command line option: "--std=c++2a".

It seems similiar to my previous issue #3653, to confirm that I've changed

platformio-core/platformio/commands/check/tools/cppcheck.py

Line 148 in 9695720

cmd.append("-" + flag.replace("gnu", "c"))

cmd.append("-" + flag.replace("gnu", "c").replace("2a","20"))

After that hardcoded fix I am able to run cppcheck, I haven't check other tools so they might have the same issue.