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-rw-r--r--module/hnh/test/util.scm3
1 files changed, 2 insertions, 1 deletions
diff --git a/module/hnh/test/util.scm b/module/hnh/test/util.scm
index b0f3342a..ba0f8bfb 100644
--- a/module/hnh/test/util.scm
+++ b/module/hnh/test/util.scm
@@ -38,7 +38,8 @@
(define (string-replace-head s1 s2)
(string-replace s1 s2
- 0 (string-length s2)))
+ 0 (min (string-length s1)
+ (string-length s2))))
(define diff-cmd