83c48d9a1f fix locale for lint-shell (Julian Fleischer)
Pull request description:
A piece of code from https://github.com/bitcoin/bitcoin/pull/13816 which I am hereby splitting into smaller PRs.
The `shellcheck` executable shipped with travis's trusty linux environment (contains shellcheck `0.3.1` in `/usr/local/bin` as opposed to the distros `0.3.3` in `/usr/bin`) segfaults when `LC_ALL=C`.
This makes sure that in travis, no matter from where the script is called, `LC_ALL` is left unset. Comment changed accordingly.
Tree-SHA512: 86afa9247f2adbeefa75bf3d56a94766f8e8e1839f40b73763ff7b893a09c848ee64648fc06ce3e6bd0f650127365f508b37fdefb48d61e49f5d551c074cb16e
47776a958b08382d76d69b5df7beed807af168b3 Add linter: Make sure all shell scripts opt out of locale dependence using "export LC_ALL=C" (practicalswift)
3352da8da1243c03fc83ba678d2f5d193bd5a0c2 Add "export LC_ALL=C" to all shell scripts (practicalswift)
Pull request description:
~~Make sure `LC_ALL=C` is set when using `grep` range expressions.~~
Make sure `LC_ALL=C` is set in all shell scripts.
From the `grep(1)` documentation:
> Within a bracket expression, a range expression consists of two characters separated by a hyphen. It matches any single character that sorts between the two characters, inclusive, using the locale's collating sequence and character set. For example, in the default C locale, `[a-d]` is equivalent to `[abcd]`. Many locales sort characters in dictionary order, and in these locales `[a-d]` is typically not equivalent to `[abcd]`; it might be equivalent to `[aBbCcDd]`, for example. To obtain the traditional interpretation of bracket expressions, you can use the C locale by setting the `LC_ALL` environment variable to the value C.
Context: [Locale issue found when reviewing #13450](https://github.com/bitcoin/bitcoin/pull/13450/files#r194877736)
Tree-SHA512: fd74d2612998f9b49ef9be24410e505d8c842716f84d085157fc7f9799d40e8a7b4969de783afcf99b7fae4f91bbb4559651f7dd6578a6a081a50bdea29f0909
