From 257a41b12cb1e3f24872f9d2023c7d44b3c97b71 Mon Sep 17 00:00:00 2001
From: "Richard W.M. Jones" <rjones@redhat.com>
Date: Sun, 12 Jan 2020 19:13:09 +0000
Subject: [PATCH] eval: Remove a single trailing \n from "returning string"
 functions.

---
 src/eval.ml | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/eval.ml b/src/eval.ml
index 053d8bf..3363eef 100644
--- a/src/eval.ml
+++ b/src/eval.ml
@@ -278,6 +278,10 @@ and call_function_really env loc name returning code =
      let r, b = run_code_to_string env loc code in
      if r <> 0 then
        failwithf "function ‘%s’ failed with exit code %d" name r;
+     (* Remove a single trailing \n if present. *)
+     let b =
+       let len = String.length b in
+       if len > 0 && b.[len-1] = '\n' then String.sub b 0 (len-1) else b in
      Ast.EConstant (loc, Ast.CString b)
 
   | RetStrings ->
-- 
1.8.3.1