Remove leading white space from multi-line string.

Move the definition of the description variable out of the
'if __name__=="__main_"' block for cleaner formatting of the whitespace.

bin.src/validateDrp.py

@@ -31,22 +31,23 @@
 from lsst.validate.drp import validate, util
 
 
+description = """
+Calculate and plot validation Key Project Metrics from the LSST SRD.
+http://ls.st/LPM-17
+
+Produces results to:
+STDOUT
+    Summary of key metrics
+REPONAME*.png
+    Plots of key metrics.  Generated in current working directory.
+REPONAME*.json
+    JSON serialization of each KPM.
+
+where REPONAME is based on the repository name but with path separators
+replaced with underscores.  E.g., "Cfht/output" -> "Cfht_output_"
+"""
+
 if __name__ == "__main__":
-    description = """
-    Calculate and plot validation Key Project Metrics from the LSST SRD.
-    http://ls.st/LPM-17
-
-    Produces results to:
-    STDOUT
-        Summary of key metrics
-    REPONAME*.png
-        Plots of key metrics.  Generated in current working directory.
-    REPONAME*.json
-        JSON serialization of each KPM.
-
-    where REPONAME is based on the repository name but with path separators
-    replaced with underscores.  E.g., "Cfht/output" -> "Cfht_output_"
-    """
     parser = argparse.ArgumentParser(description=description,
                                      formatter_class=argparse.RawDescriptionHelpFormatter)
     parser.add_argument('repo', type=str,