[android-developers] SDK 2.3: Get "Multiple substitutions specified in non-positional format" error

When this string is in my strings.xml

<string name="home_activity_header_name">%s %s</string>

I get this error when compiling the source-code:
"error: Multiple substitutions specified in non-positional format; did
you mean to add the formatted="false" attribute"

I just upgraded to the newest tools (v 8.0.0) and downloaded the
latest SDK (2.3).
I compile under apil-leverl 8 and i tried compiling under api-level 9.

Why does this error suddenly appear?
Is there a way to get rid of it?

Thanks!

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