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, 2 insertions, 2 deletions

diff --git a/src/txmempool.cpp b/src/txmempool.cpp
index a9567d3b1..1df9c5c79 100644
--- a/src/txmempool.cpp
+++ b/src/txmempool.cpp
@@ -648,7 +648,7 @@ CTxMemPool::WriteFeeEstimates(CAutoFile& fileout) const
         fileout << CLIENT_VERSION; // version that wrote the file
         minerPolicyEstimator->Write(fileout);
     }
-    catch (const std::exception &) {
+    catch (const std::exception&) {
         LogPrintf("CTxMemPool::WriteFeeEstimates() : unable to write policy estimator data (non-fatal)");
         return false;
     }
@@ -667,7 +667,7 @@ CTxMemPool::ReadFeeEstimates(CAutoFile& filein)
         LOCK(cs);
         minerPolicyEstimator->Read(filein, minRelayFee);
     }
-    catch (const std::exception &) {
+    catch (const std::exception&) {
         LogPrintf("CTxMemPool::ReadFeeEstimates() : unable to read policy estimator data (non-fatal)");
         return false;
     }