Remove redundant .c_str()s

After the tinyformat switch sprintf() family functions support passing
actual std::string objects.

Remove unnecessary c_str calls (236 of them) in logging and formatting.

1 files changed, 2 insertions, 2 deletions

diff --git a/src/rpcmisc.cpp b/src/rpcmisc.cpp
index f8a7d07fc3..1d3237dfc1 100644
--- a/src/rpcmisc.cpp
+++ b/src/rpcmisc.cpp
@@ -199,11 +199,11 @@ CScript _createmultisig(const Array& params)
             CKeyID keyID;
             if (!address.GetKeyID(keyID))
                 throw runtime_error(
-                    strprintf("%s does not refer to a key",ks.c_str()));
+                    strprintf("%s does not refer to a key",ks));
             CPubKey vchPubKey;
             if (!pwalletMain->GetPubKey(keyID, vchPubKey))
                 throw runtime_error(
-                    strprintf("no full public key for address %s",ks.c_str()));
+                    strprintf("no full public key for address %s",ks));
             if (!vchPubKey.IsFullyValid())
                 throw runtime_error(" Invalid public key: "+ks);
             pubkeys[i] = vchPubKey;