* Fixed typo: b4paper -> b5paper (in a comment)

git-svn-id: https://tufte-latex.googlecode.com/svn/trunk@124 516e2f36-ce3a-0410-bea4-1d4a03f5df72

tufte-common.def

@@ -47,7 +47,7 @@
 \DeclareOptionX[tufte]<common>{a4paper}{\setboolean{@tufte@afourpaper}{true}}
 
 %%
-% `b4paper' option
+% `b5paper' option
 
 \newboolean{@tufte@bfivepaper}
 \DeclareOptionX[tufte]<common>{b5paper}{\setboolean{@tufte@bfivepaper}{true}}