scripted-diff: remove duplicate categories from LogPrint output

-BEGIN VERIFY SCRIPT-
s() { git grep -l "$1" src | xargs sed -i "s/$1/$2/g"; }
s 'BCLog::TOR, "tor: '       'BCLog::TOR, "'
s 'BCLog::I2P, "I2P: '       'BCLog::I2P, "'
s 'BCLog::NET, "net: '       'BCLog::NET, "'
s 'BCLog::ZMQ, "zmq: '       'BCLog::ZMQ, "'
s 'BCLog::PRUNE, "Prune: '   'BCLog::PRUNE, "'
-END VERIFY SCRIPT-

src/node/blockstorage.cpp

@@ -226,7 +226,7 @@ void BlockManager::FindFilesToPrune(std::set<int>& setFilesToPrune, uint64_t nPr
         }
     }
 
-    LogPrint(BCLog::PRUNE, "Prune: target=%dMiB actual=%dMiB diff=%dMiB max_prune_height=%d removed %d blk/rev pairs\n",
+    LogPrint(BCLog::PRUNE, "target=%dMiB actual=%dMiB diff=%dMiB max_prune_height=%d removed %d blk/rev pairs\n",
            nPruneTarget/1024/1024, nCurrentUsage/1024/1024,
            ((int64_t)nPruneTarget - (int64_t)nCurrentUsage)/1024/1024,
            nLastBlockWeCanPrune, count);