fix more bare excepts

scripts/get_balance

@@ -85,7 +85,7 @@ def main(address):
 if __name__ == "__main__":
     try:
         address = sys.argv[1]
-    except:
+    except Exception:
         print "usage: get_balance <bitcoin_address>"
         sys.exit(1)
     main(address)

scripts/get_history

@@ -5,7 +5,7 @@ from electrum import Network
 
 try:
     addr = sys.argv[1]
-except:
+except Exception:
     print "usage: get_history <bitcoin_address>"
     sys.exit(1)
 

scripts/merchant/merchant.py

@@ -104,7 +104,7 @@ def process_request(amount, confirmations, expires_in, password):
         amount = float(amount)
         confirmations = int(confirmations)
         expires_in = float(expires_in)
-    except:
+    except Exception:
         return "incorrect parameters"
 
     account = wallet.accounts["m/0'/0"]

scripts/watch_address

@@ -4,7 +4,7 @@ import sys, time, electrum
 
 try:
     addr = sys.argv[1]
-except:
+except Exception:
     print "usage: watch_address <bitcoin_address>"
     sys.exit(1)