Improve error message.

diff --git a/options.cpp b/options.cpp
index c5f5c290b007b2154801069faf60e7da87bc37ee..b440f7ce76be2f908dc47fdc2a99d5a007819851 100644 (file)
--- a/options.cpp
+++ b/options.cpp
@@ -367,7 +367,9 @@ bool opt::parse_args(int* argc, char* argv[])
 
     if (opt::max_transfer_amount &&
         opt::max_transfer_amount < opt::min_transfer_amount) {
-        XBT_ERROR("max. data transfer amount < min. data transfer amount");
+        XBT_ERROR("max. data transfer amount (%g) <"
+                  " min. data transfer amount (%g)",
+                  opt::max_transfer_amount, opt::min_transfer_amount);
         result = false;
     }