Fix conflict merging iwasakims readme fix
diff --git a/README.md b/README.md
index 18facb1..a8b7df3 100644
--- a/README.md
+++ b/README.md
@@ -169,7 +169,7 @@
 Testing Information
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-The test that creates a sample trace (TestHTrace) takes a command line argument telling it where to write span information. Run mvn test -DspanFile="FILE\_PATH" to write span information to FILE_PATH. If no file is specified, span information will be written to standard out. If span information is written to a file, you can use the included graphDrawer python script in tools/ to create a simple visualization of the trace. Or you could write some javascript to make a better visualization, and send a pull request if you do :). 
+The test that creates a sample trace (TestHTrace) takes a command line argument telling it where to write span information. Run mvn test -DargLine="-DspanFile=FILE\_PATH" to write span information to FILE_PATH. If no file is specified, span information will be written to standard out. If span information is written to a file, you can use the included graphDrawer python script in tools/ to create a simple visualization of the trace. Or you could write some javascript to make a better visualization, and send a pull request if you do :). 
 
 Publishing to Maven Central
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