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/musl.bzl b/build/toolchain/musl-host-gcc/sysroot/musl.bzl
index 5055b83..f5dba26 100644
--- a/build/toolchain/musl-host-gcc/sysroot/musl.bzl
+++ b/build/toolchain/musl-host-gcc/sysroot/musl.bzl
@@ -33,7 +33,7 @@
         use_default_shell_env = True,
         command = "make -C \"$1\" install-headers ARCH=\"$2\" includedir=\"$(pwd)/$3\" > /dev/null",
     )
-    return [DefaultInfo(files=depset([hdrs_dir]))]
+    return [DefaultInfo(files = depset([hdrs_dir]))]
 
 musl_headers = rule(
     implementation = _musl_headers,