update for new Swift 4 string API

emaloney · Aug 21, 2017 · 2f2aecd · 2f2aecd
1 parent ba3fff3
commit 2f2aecd
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/Sources/SeverityLogFormatter.swift b/Sources/SeverityLogFormatter.swift
@@ -167,7 +167,7 @@ public struct SeverityLogFormatter: LogFormatter
             if severityTag.characters.count > trunc {
                 let startIndex = severityTag.characters.startIndex
                 let endIndex = severityTag.characters.index(startIndex, offsetBy: trunc)
-                severityTag = severityTag.substring(to: endIndex)
+                severityTag = String(severityTag[..<endIndex])
             }
         }