diff.c: convert -U|--unified

diff --git a/usage.c b/usage.c
index b3c78931ad9f68f45f78253c64abe9416b3971b3..cc803336bd5e6761b7fd50c33dba5aa9f734c4ba 100644 (file)
--- a/usage.c
+++ b/usage.c
@@ -211,6 +211,9 @@ void warning(const char *warn, ...)
        va_end(params);
 }
 
+/* Only set this, ever, from t/helper/, when verifying that bugs are caught. */
+int BUG_exit_code;
+
 static NORETURN void BUG_vfl(const char *file, int line, const char *fmt, va_list params)
 {
        char prefix[256];
@@ -222,6 +225,8 @@ static NORETURN void BUG_vfl(const char *file, int line, const char *fmt, va_lis
                snprintf(prefix, sizeof(prefix), "BUG: ");
 
        vreportf(prefix, fmt, params);
+       if (BUG_exit_code)
+               exit(BUG_exit_code);
        abort();
 }