Fix conditional jumps based on uninitialized memory at 'process_cmnt_type_1'

Solved previously left TODOs, removed faulty logic for whitespace
processing for comments using position 'res_cur_pos'. This position
shall not be used because points to yet uninitialized memory, last
position with copied query data should always be 'res_cur_pos-1'.
Because of it, removing the extra logic based on 'res_cur_pos' should be
harmless.

lib/c_tokenizer.cpp

@@ -1241,7 +1241,6 @@ enum p_st process_cmnt_type_1(options* opts, shared_st* shared_st, cmnt_type_1_s
 
 					shared_st->res_cur_pos += copy_length;
 
-					// TODO: Check if the copy can be prevented as in the outer check for non-cmd comments
 					// The extra space is due to the removal of '*/', this is relevant because the
 					// comment can be in the middle of the query.
 					if (*(shared_st->res_cur_pos - 1 ) != ' ' && shared_st->res_cur_pos != res_final_pos) {
@@ -1255,18 +1254,18 @@ enum p_st process_cmnt_type_1(options* opts, shared_st* shared_st, cmnt_type_1_s
 			c_t_1_st->cur_cmd_cmnt_len = 0;
 		}
 
-		// TODO: Related to previous TODO. Remember this is a relatively new change in the current code
-		// not at the beginning and previous char is not ' '
 		if (
+			// not at the beginning or at the end of the query
 			shared_st->res_init_pos != shared_st->res_cur_pos && shared_st->res_cur_pos != res_final_pos &&
-			*shared_st->res_cur_pos != ' ' && *(shared_st->res_cur_pos-1) != ' '
+			// if the prev copied char isn't a space comment wasn't space separated in the query:
+			// ```
+			// Q: `SELECT/*FOO*/1`
+			//          ^ no space char
+			// ```
+			// thus we impose an extra space in replace for the ommited comment
+			*(shared_st->res_cur_pos-1) != ' '
 		) {
 			*shared_st->res_cur_pos++ = ' ';
-		} else if (
-			shared_st->res_init_pos != shared_st->res_cur_pos && shared_st->res_cur_pos != res_final_pos &&
-			*shared_st->res_cur_pos == ' '
-		) {
-			shared_st->res_cur_pos++;
 		}
 
 		// if there were no space we have imposed it