sw: avoid 'else if' after return

And also don't declare multiple variables with a single statement, so
e.g. their constness can be changed separately.

Change-Id: I0786369b22d2947a561d753ef79534879bb41f5b
Reviewed-on: https://gerrit.libreoffice.org/85425
Tested-by: Jenkins
Reviewed-by: Miklos Vajna <vmiklos@collabora.com>

path: root/.gitattributes

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