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-rw-r--r--backtrace-symbols.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/backtrace-symbols.c b/backtrace-symbols.c
index 9dd890c..3de32a5 100644
--- a/backtrace-symbols.c
+++ b/backtrace-symbols.c
@@ -225,7 +225,7 @@ static char ** translate_addresses_vec(
} else {
char const *name = arg.functionname;
if (name == NULL || *name == '\0')
- name = "??";
+ name = "\?\?";
if (arg.filename != NULL) {
char *h;