gh-actions: prevent x116 test from matching itself
`git grep x116` was finding the x116 in the git grep command (as well
as the name of the test, but that's easier to fix.  This just breaks
up the string a bit.
@@ -14,8 +14,8 @@ jobs:
- name: Tabs
run: find simde/ -name '*.c' -o -name '*.h' -exec grep -nP '\t' {} + && exit 1 || exit 0
# s/8/16/ will result in this if the input in x86.
- - name: x166
- run: git grep -i x166 && exit 1 || 0
+ - name: Bad substitutions
+ run: git grep -i 'x''1''6''6' && exit 1 || exit 0
x86:
runs-on: ubuntu-latest
