Fix multiline docs (#3035)

Signed-off-by: Reinhard Nägele <unguiculus@gmail.com>

.gitignore

@@ -27,6 +27,7 @@ dist
 coverage.txt
 .DS_Store
 .aws-sam
+.idea
 
 # emacs
-.#*
+.#*

docs/sources/clients/promtail/stages/multiline.md

@@ -13,17 +13,17 @@ A new block is identified by the `firstline` regular expression. Any line that d
 ```yaml
 multiline:
   # RE2 regular expression, if matched will start a new multiline block.
-  # This expresion must be provided.
+  # This expression must be provided.
   firstline: <string>
 
   # The maximum wait time will be parsed as a Go duration: https://golang.org/pkg/time/#ParseDuration.
-  # If now new logs arrive withing this maximum wait time the current block will be sent on.
-  # This is useful if the opserved application dies with e.g. an exception. No new logs will arrive and the exception
-  # block is sent *after* the maximum wait time expired.
+  # If no new logs arrive within this maximum wait time the current block will be sent on.
+  # This is useful if the observed application dies with e.g. an exception. No new logs will arrive and the exception
+  # block is sent *after* the maximum wait time expires.
   # It defaults to 3s.
   max_wait_time: <duration>
 
-  # Maximum number of lines a block can have. If block has more lines a new block is started.
+  # Maximum number of lines a block can have. If the block has more lines a new block is started.
   # The default is 128 lines.
   max_lines: <integer>
 ```
@@ -64,4 +64,4 @@ multiline:
   firstline: "^\[\d{4}-\d{2}-\d{2} \d{1,2}:\d{2}:\d{2}\]"
 
   max_wait_time: 3s
-```
+```

pkg/logentry/stages/multiline.go

@@ -66,7 +66,7 @@ func validateMultilineConfig(cfg *MultilineConfig) error {
 	return nil
 }
 
-// dropMultiline matches lines to determine whether the following lines belong to a block and should be collapsed
+// multilineStage matches lines to determine whether the following lines belong to a block and should be collapsed
 type multilineStage struct {
 	logger log.Logger
 	cfg    *MultilineConfig

pkg/logentry/stages/multiline_test.go

@@ -16,7 +16,6 @@ import (
 )
 
 func Test_multilineStage_Process(t *testing.T) {
-
 	// Enable debug logging
 	cfg := &ww.Config{}
 	require.Nil(t, cfg.LogLevel.Set("debug"))
@@ -47,6 +46,7 @@ func Test_multilineStage_Process(t *testing.T) {
 	require.Equal(t, "START line 2", out[3].Line)
 	require.Equal(t, "START line 3", out[4].Line)
 }
+
 func Test_multilineStage_MultiStreams(t *testing.T) {
 	// Enable debug logging
 	cfg := &ww.Config{}