From b0ba7a897f88f408a8f02abf40ee6e90cb743186 Mon Sep 17 00:00:00 2001
From: asynts <asynts@gmail.com>
Date: Mon, 7 Sep 2020 19:09:21 +0200
Subject: [PATCH] Userland: gunzip if filename doesn't end in .gz append it.

This is the behaviour of gzip on my Linux system.
---
 Userland/gunzip.cpp | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/Userland/gunzip.cpp b/Userland/gunzip.cpp
index 799ebc5709..5a344c8d41 100644
--- a/Userland/gunzip.cpp
+++ b/Userland/gunzip.cpp
@@ -55,8 +55,9 @@ int main(int argc, char** argv)
     if (write_to_stdout)
         keep_input_files = true;
 
-    for (StringView filename : filenames) {
-        ASSERT(filename.ends_with(".gz"));
+    for (String filename : filenames) {
+        if (!filename.ends_with(".gz"))
+            filename = String::format("%s.gz", filename);
 
         const auto input_filename = filename;
         const auto output_filename = filename.substring_view(0, filename.length() - 3);