RFR (XS): 8155813: Fix indentation in G1RemSetScanState::clear_card_table

[Thomas Schatzl]

Hi all,

  can I have reviews for this tiny change that fixes indentation in the
mentioned method? For some reason it slipped through...

CR:
https://bugs.openjdk.java.net/browse/JDK-8155813
Webrev:
http://cr.openjdk.java.net/~tschatzl/8155813/webrev/hotspot.patch (inte
ntionally linking the patch file as webrev does not show indentation
changes at all).
Testing:
local compilation

Thanks,
  Thomas