fix variable typo

cx1111 · cx1111 · commit d11653449477 · 2017-06-20T11:35:38.000-04:00
diff --git a/wfdb/plot/plots.py b/wfdb/plot/plots.py
@@ -52,7 +52,7 @@ def plotrec(record=None, title = None, annotation = None, annch = [0], timeunits
     
     # Expand list styles
     if type(sigstyle) == str:
-        sigtyle = [sigstyle]*record.nsig
+        sigstyle = [sigstyle]*record.nsig
     else:
         if len(sigstyle) < record.nsig:
             sigstyle = sigstyle+['']*(record.nsig-len(sigstyle))
