config/known in rvm-0.1.46 vs config/known in rvm-0.1.47

@@ -7,9 +7,11 @@
 (ruby-)1.9.1-p376
 (ruby-)1.9.1(-p429)
 (ruby-)1.9.1-head
 (ruby-)1.9.2-preview1
 (ruby-)1.9.2-preview3
+(ruby-)1.9.2-rc1
+(ruby-)1.9.2-rc2
 (ruby-)1.9.2(-p0)
 (ruby-)1.9.2-head
 ruby-head
 
 # JRuby