Fix typo of log file path (#719)

* Fix typo of log file path

Hey! 
I got a bit baffled by 'pass' which I believe means 'path' of the log file. Hope it helps.

* fix comment for log_to_file CLI param in acra-server

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Co-authored-by: Lagovas <dmitry@cossacklabs.com>

Author: rojinebrahimi

cmd/acra-server/acra-server.go

@@ -151,7 +151,7 @@ func registerFlags(flagSet *flag.FlagSet) {
 	flagSet.Bool("v", false, "Log to stderr all INFO, WARNING and ERROR logs")
 	flagSet.Bool("d", false, "Log everything to stderr")
 	flagSet.Bool("log_to_console", true, "Log to stderr if true")
-	flagSet.String("log_to_file", "", "Log to file if pass not empty value")
+	flagSet.String("log_to_file", "", "Log to file if path not empty value")
 
 	network.RegisterTLSBaseArgs(flagSet)
 	network.RegisterTLSArgsForService(flagSet, false, "", network.ClientNameConstructorFunc())

configs/acra-server.yaml

@@ -152,7 +152,7 @@ kms_type:
 # Log to stderr if true
 log_to_console: true
 
-# Log to file if pass not empty value
+# Log to file if path not empty value
 log_to_file: 
 
 # Logging format: plaintext, json or CEF