scripted-diff: Use the C++11 keyword nullptr to denote the pointer literal instead of the macro NULL

-BEGIN VERIFY SCRIPT-
sed -i 's/\<NULL\>/nullptr/g' src/*.cpp src/*.h src/*/*.cpp src/*/*.h src/qt/*/*.cpp src/qt/*/*.h src/wallet/*/*.cpp src/wallet/*/*.h src/support/allocators/*.h
sed -i 's/Prefer nullptr, otherwise SAFECOOKIE./Prefer NULL, otherwise SAFECOOKIE./g' src/torcontrol.cpp
sed -i 's/tor: Using nullptr authentication/tor: Using NULL authentication/g' src/torcontrol.cpp
sed -i 's/METHODS=nullptr/METHODS=NULL/g' src/test/torcontrol_tests.cpp src/torcontrol.cpp
sed -i 's/nullptr certificates/NULL certificates/g' src/qt/paymentserver.cpp
sed -i 's/"nullptr"/"NULL"/g' src/torcontrol.cpp src/test/torcontrol_tests.cpp
-END VERIFY SCRIPT-

1 files changed, 2 insertions, 2 deletions

diff --git a/src/rpc/blockchain.cpp b/src/rpc/blockchain.cpp
index d65e107e3c..6975d26c69 100644
--- a/src/rpc/blockchain.cpp
+++ b/src/rpc/blockchain.cpp
@@ -48,9 +48,9 @@ extern void TxToJSON(const CTransaction& tx, const uint256 hashBlock, UniValue&
 
 double GetDifficulty(const CBlockIndex* blockindex)
 {
-    if (blockindex == NULL)
+    if (blockindex == nullptr)
     {
-        if (chainActive.Tip() == NULL)
+        if (chainActive.Tip() == nullptr)
             return 1.0;
         else
             blockindex = chainActive.Tip();