treewide: format repo with buildifier

Change-Id: Ia7aebeb7bba5b119c9157d1ad805cc477bcbb68a
Reviewed-on: https://review.monogon.dev/c/monogon/+/3774
Tested-by: Jenkins CI
Reviewed-by: Leopold Schabel <leo@monogon.tech>
diff --git a/build/toolchain/musl-host-gcc/sysroot/linux.bzl b/build/toolchain/musl-host-gcc/sysroot/linux.bzl
index e9cf40a..0d6b999 100644
--- a/build/toolchain/musl-host-gcc/sysroot/linux.bzl
+++ b/build/toolchain/musl-host-gcc/sysroot/linux.bzl
@@ -33,7 +33,7 @@
         use_default_shell_env = True,
         command = "make -C \"$1\" headers_install ARCH=\"$2\" INSTALL_HDR_PATH=\"$(pwd)/$3\" > /dev/null && mv \"$3/include/\"* \"$3/\" && rmdir \"$3/include\"",
     )
-    return [DefaultInfo(files=depset([hdrs_dir]))]
+    return [DefaultInfo(files = depset([hdrs_dir]))]
 
 linux_headers = rule(
     implementation = _linux_headers,