installdependencies.sh prints incorrect return value in case of apt-get error

[Topi-ab]

Describe the bug Lines https://github.com/actions/runner/blob/ca2b1bc6d5eb87339966571a8ad453adcdca4cf2/src/Misc/layoutbin/installdependencies.sh#L69-L72 do not print out the actual error. The "$?" variable gets cleared with if -command.

FIX: Store the error code to a temporary variable before if, and then use that variable in both if and echo.

Also it would be good to print out the failing command line, like

apt_get update && $apt_get install -y libkrb5-3 zlib1g failed with error code 7.

To Reproduce

Disconnect net when running the script.

Expected behavior Should print the error code returnted by apt-get

Runner Version and Platform

Version of your runner? ??

OS of the machine running the runner? OSX/Windows/Linux/... Linux

What's not working?

Error printing

Job Log Output

N/A

Runner and Worker's Diagnostic Logs

N/A