changed name of diagnostics parameter.

dune/fem-dg/test/parameter/paramBase

@@ -7,7 +7,7 @@ fem.parallel.numberofthreads: 8
 # write diagnostics file (
 # 0 don't, 1 only speedup file, 2 write all runfiles 
 # 3 only write 0, others at end, 4 all files at end for scaling) 
-fem.parallel.runfile: 1
+fem.parallel.diagnostics: 1
 
 # if true non-blocking communication is enabled
 femdg.nonblockingcomm: true