---
 lib/util/stringutils.c | 2 +-
 lib/util/stringutils.h | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/lib/util/stringutils.c b/lib/util/stringutils.c
index e991a13..d686b56 100644
--- a/lib/util/stringutils.c
+++ b/lib/util/stringutils.c
@@ -321,7 +321,7 @@ char *scrub_for_print(
         {
             fmt = "\\x%02" PRIx8;
         }
-        else if (strchr(other_chars_to_escape, src[i]))
+        else if (other_chars_to_escape && strchr(other_chars_to_escape, 
src[i]))
         {
             fmt = "\\%c";
         }
diff --git a/lib/util/stringutils.h b/lib/util/stringutils.h
index c059c77..5dbf4ff 100644
--- a/lib/util/stringutils.h
+++ b/lib/util/stringutils.h
@@ -157,7 +157,7 @@ int expand_by_doubling(
  *     parameter may be NULL.
  * @param[in] other_chars_to_escape
  *     nul-terminated array of additional characters to escape with a
- *     backslash.  This must not be NULL.
+ *     backslash.  This may be NULL.
  *
  * @return dst
 
------------------------------------------------------------------------------*/
-- 
2.4.3


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