make all catch() arguments const

- I saw this on http://en.cppreference.com/w/cpp/language/try_catch and
  thought it would be a good idea
- also unify used format to better be able to search for exception
  uses in our codebase

1 files changed, 1 insertions, 1 deletions

diff --git a/src/rpcrawtransaction.cpp b/src/rpcrawtransaction.cpp
index 4a1af2207a..f596c358a9 100644
--- a/src/rpcrawtransaction.cpp
+++ b/src/rpcrawtransaction.cpp
@@ -545,7 +545,7 @@ Value signrawtransaction(const Array& params, bool fHelp)
             ssData >> tx;
             txVariants.push_back(tx);
         }
-        catch (const std::exception &) {
+        catch (const std::exception&) {
             throw JSONRPCError(RPC_DESERIALIZATION_ERROR, "TX decode failed");
         }
     }