log: fix typos in comments (ethereum#21118)

log/doc.go

@@ -65,7 +65,7 @@ This will output a log line that includes the path context that is attached to t
 
 Handlers
 
-The Handler interface defines where log lines are printed to and how they are formated. Handler is a
+The Handler interface defines where log lines are printed to and how they are formatted. Handler is a
 single interface that is inspired by net/http's handler interface:
 
     type Handler interface {

log/format.go

@@ -41,7 +41,7 @@ func PrintOrigins(print bool) {
 var locationEnabled uint32
 
 // locationLength is the maxmimum path length encountered, which all logs are
-// padded to to aid in alignment.
+// padded to aid in alignment.
 var locationLength uint32
 
 // fieldPadding is a global map with maximum field value lengths seen until now
@@ -78,7 +78,7 @@ type TerminalStringer interface {
 // a terminal with color-coded level output and terser human friendly timestamp.
 // This format should only be used for interactive programs or while developing.
 //
-//	[TIME] [LEVEL] MESAGE key=value key=value ...
+//	[TIME] [LEVEL] MESSAGE key=value key=value ...
 //
 // Example:
 //

log/handler.go

@@ -117,7 +117,7 @@ func formatCall(format string, c stack.Call) string {
 }
 
 // CallerStackHandler returns a Handler that adds a stack trace to the context
-// with key "stack". The stack trace is formated as a space separated list of
+// with key "stack". The stack trace is formatted as a space separated list of
 // call sites inside matching []'s. The most recent call site is listed first.
 // Each call site is formatted according to format. See the documentation of
 // package github.com/go-stack/stack for the list of supported formats.
@@ -135,15 +135,14 @@ func CallerStackHandler(format string, h Handler) Handler {
 // wrapped Handler if the given function evaluates true. For example,
 // to only log records where the 'err' key is not nil:
 //
-//    logger.SetHandler(FilterHandler(func(r *Record) bool {
-//        for i := 0; i < len(r.Ctx); i += 2 {
-//            if r.Ctx[i] == "err" {
-//                return r.Ctx[i+1] != nil
-//            }
-//        }
-//        return false
-//    }, h))
-//
+//	logger.SetHandler(FilterHandler(func(r *Record) bool {
+//	    for i := 0; i < len(r.Ctx); i += 2 {
+//	        if r.Ctx[i] == "err" {
+//	            return r.Ctx[i+1] != nil
+//	        }
+//	    }
+//	    return false
+//	}, h))
 func FilterHandler(fn func(r *Record) bool, h Handler) Handler {
 	return FuncHandler(func(r *Record) error {
 		if fn(r) {
@@ -158,8 +157,7 @@ func FilterHandler(fn func(r *Record) bool, h Handler) Handler {
 // context matches the value. For example, to only log records
 // from your ui package:
 //
-//    log.MatchFilterHandler("pkg", "app/ui", log.StdoutHandler)
-//
+//	log.MatchFilterHandler("pkg", "app/ui", log.StdoutHandler)
 func MatchFilterHandler(key string, value interface{}, h Handler) Handler {
 	return FilterHandler(func(r *Record) (pass bool) {
 		switch key {
@@ -185,8 +183,7 @@ func MatchFilterHandler(key string, value interface{}, h Handler) Handler {
 // level to the wrapped Handler. For example, to only
 // log Error/Crit records:
 //
-//     log.LvlFilterHandler(log.LvlError, log.StdoutHandler)
-//
+//	log.LvlFilterHandler(log.LvlError, log.StdoutHandler)
 func LvlFilterHandler(maxLvl Lvl, h Handler) Handler {
 	return FilterHandler(func(r *Record) (pass bool) {
 		return r.Lvl <= maxLvl
@@ -198,10 +195,9 @@ func LvlFilterHandler(maxLvl Lvl, h Handler) Handler {
 // to different locations. For example, to log to a file and
 // standard error:
 //
-//     log.MultiHandler(
-//         log.Must.FileHandler("/var/log/app.log", log.LogfmtFormat()),
-//         log.StderrHandler)
-//
+//	log.MultiHandler(
+//	    log.Must.FileHandler("/var/log/app.log", log.LogfmtFormat()),
+//	    log.StderrHandler)
 func MultiHandler(hs ...Handler) Handler {
 	return FuncHandler(func(r *Record) error {
 		for _, h := range hs {
@@ -219,10 +215,10 @@ func MultiHandler(hs ...Handler) Handler {
 // to writing to a file if the network fails, and then to
 // standard out if the file write fails:
 //
-//     log.FailoverHandler(
-//         log.Must.NetHandler("tcp", ":9090", log.JsonFormat()),
-//         log.Must.FileHandler("/var/log/app.log", log.LogfmtFormat()),
-//         log.StdoutHandler)
+//	log.FailoverHandler(
+//	    log.Must.NetHandler("tcp", ":9090", log.JsonFormat()),
+//	    log.Must.FileHandler("/var/log/app.log", log.LogfmtFormat()),
+//	    log.StdoutHandler)
 //
 // All writes that do not go to the first handler will add context with keys of
 // the form "failover_err_{idx}" which explain the error encountered while