From e9a71bd6f1c04bce5a33ddfe0b57991e63996fb3 Mon Sep 17 00:00:00 2001
From: 0xb00bface <0xboobface@gmail.com>
Date: Sat, 23 Jan 2021 13:11:59 +0100
Subject: [PATCH] Fix bug in grep method

---
 common/src/main/java/ctbrec/StringUtil.java | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/common/src/main/java/ctbrec/StringUtil.java b/common/src/main/java/ctbrec/StringUtil.java
index 8eed65ee..860d1ae2 100644
--- a/common/src/main/java/ctbrec/StringUtil.java
+++ b/common/src/main/java/ctbrec/StringUtil.java
@@ -83,6 +83,9 @@ public class StringUtil {
                 result.append(line).append('\n');
             }
         }
-        return result.deleteCharAt(result.length() - 1).toString();
+        if (result.length() >= 2) {
+            result = result.deleteCharAt(result.length() - 1);
+        }
+        return result.toString();
     }
 }