constify missing catch cases

- ensure all missing catch cases are constant where possible

1 files changed, 1 insertions, 1 deletions

diff --git a/src/bitcoin-tx.cpp b/src/bitcoin-tx.cpp
index 3330fe5d12..48033cd8ad 100644
--- a/src/bitcoin-tx.cpp
+++ b/src/bitcoin-tx.cpp
@@ -37,7 +37,7 @@ static bool AppInitRawTx(int argc, char* argv[])
     // Check for -testnet or -regtest parameter (Params() calls are only valid after this clause)
     try {
         SelectParams(ChainNameFromCommandLine());
-    } catch(std::exception &e) {
+    } catch (const std::exception& e) {
         fprintf(stderr, "Error: %s\n", e.what());
         return false;
     }