Added tag 3.4 for changeset 8cc6036bca53

tests: make tests with temporary environment setting portable With "dash" (as "/bin/sh" on Debian GNU/Linux), command execution in "ENV=val foo bar" style doesn't work as expect in test script files, if "foo" is user-defined function: it works fine, if "foo" is existing commands like "hg". 09049042ab99 introduced tests for HGPLAIN and HGPLAINEXCEPT into test-revset.t, and all of them are in such style. This patch doesn't: - add explicit unsetting for HGPLAIN and HGPLAINEXCEPT they are already introduced by 09049042ab99 - write assignment and exporting in one line "ENV=val; export ENV" for two or more environment variables in one line causes failure of test-check-code-hg.t: it is recognized as "don't export and assign at once" unfortunately.

debuginstall: expand the editor path before searching for it (issue4380) The editor launches without expanding the path with commits because the shell does that for us. If the path isn't an executable, the expanded path is displayed, which is probably more useful than the unexpanded path. For example, in cmd.exe, '~' expands to C:\Users\$user. But it expands to C:/mingw/msys/1.0/home/$user in MinGW.