Fix bad indent

Author: Florian Plaza Oñate

ChangeLog

@@ -1,7 +1,7 @@
 2015-09-01  Florian Plaza Onate <[email protected]>
         * inst/include/Rcpp/vector/Subsetter.h: Allow logical subsets to be
-       	assigned to a vector of size 1 
-		(pull request #349, discussed in issue #345)
+        assigned to a vector of size 1 
+        (pull request #349, discussed in issue #345)
         * inst/unitTests/cpp/Subset.cpp: Add unit test for above
         * inst/unitTests/runit.subset.R: Ditto