Fix problems with bc_lang_inst_chars
diff --git a/src/data.c b/src/data.c
index 711fa35..330cca2 100644
--- a/src/data.c
+++ b/src/data.c
@@ -157,8 +157,10 @@
const char bc_lang_func_main[7] = "(main)";
const char bc_lang_func_read[7] = "(read)";
+#ifndef NDEBUG
const char bc_lang_inst_chars[] =
- "edED_^*/%+-=;?~<>!|&`{}@[],NVACa.IOLlrqpQsSJjPR$H";
+ "edED_^*/%+-=;?~<>!|&`{}@[],NVACaI.LlrOqpQsSJjPR$H";
+#endif // NDEBUG
const BcLexKeyword bc_lex_keywords[20] = {
BC_LEX_KW_ENTRY("auto", 4, true),