.

wcfs/wcfs.go

@@ -1233,7 +1233,7 @@ retry:
 	atomic.AddInt32(&head.inflightOSCacheUploads, -1)
 
 	if bug {
-		panic(fmt.Sprintf("BUG: bigfile %s: blk %d: f.loading mutated while uploading data to pagecache", oid, blk))
+		panicf("BUG: bigfile %s: blk %d: f.loading mutated while uploading data to pagecache", oid, blk)
 	}
 
 	if st == fuse.OK {

wcfs/zblk.go

@@ -325,7 +325,7 @@ func (zb *ZBlk1) loadBlkData(ctx context.Context) ([]byte, zodb.Tid, error) {
 				})
 
 			default:
-				panic(fmt.Sprintf("IOBTree has %s child", typeOf(child)))
+				panicf("IOBTree has %s child", typeOf(child))
 			}
 		}
 

wcfs/δftail.go

@@ -21,8 +21,6 @@ package main
 // ΔFtail - merge btree.ΔTail with history of ZBlk
 
 import (
-	"fmt"
-
 	"lab.nexedi.com/kirr/neo/go/zodb"
 	"lab.nexedi.com/kirr/neo/go/zodb/btree"
 
@@ -74,7 +72,7 @@ func (δf *ΔFTail) Update(δZ *zodb.EventCommit) ΔFentry {
 	for _, δ := range δB.Changev {
 		files := δf.fileIdx[δ.Root]
 		if len(files) == 0 {
-			panic(fmt.Sprintf("ΔFTail: root<%s> -> ø file", δ.Root.POid()))
+			panicf("ΔFTail: root<%s> -> ø file", δ.Root.POid())
 		}
 		for file := range files {
 			changev = append(changev, ΔFile{