[Measure twice, cut once.
prb@mult.ifario.us**20080305085424] {
hunk ./servletsrc/perpubplat.hs 87
-       ; let modified = (ifNoneMatch /= Nothing && etag_didnt_match) 
+       ; let modified = ( ifNoneMatch /= Nothing && etag_didnt_match) 
hunk ./servletsrc/perpubplat.hs 89
-                        case ifModifiedSince of
-                          Nothing -> True
-                          Just d -> (Utils.httpDateToIso8601 d) < last_updated
+                        ( ( ifNoneMatch == Nothing )
+                          && case ifModifiedSince of
+                               Nothing -> True
+                               Just d -> (Utils.httpDateToIso8601 d) < last_updated )
}