tweaks: reduce the scope of two variables, and rename one of them

Also, swap the order of the 'if', and don't bother setting a freed
string pointer to NULL as it will never be used again.

src/global.c

@@ -142,10 +142,6 @@ char *quotestr = NULL;
 		/* The quoting string.  The default value is set in main(). */
 regex_t quotereg;
 		/* The compiled regular expression from the quoting string. */
-int quoterc;
-		/* Whether it was compiled successfully. */
-char *quoteerr = NULL;
-		/* The error message, if it didn't. */
 #endif
 
 char *word_chars = NULL;

src/nano.c

@@ -1953,6 +1953,10 @@ int main(int argc, char **argv)
 #ifdef ENABLE_WRAPPING
 	bool forced_wrapping = FALSE;
 		/* Should long lines be automatically hard wrapped? */
+#endif
+#ifdef ENABLE_JUSTIFY
+	int quoterc;
+		/* Whether the quoting regex was compiled successfully. */
 #endif
 	const struct option long_options[] = {
 		{"boldtext", 0, NULL, 'D'},
@@ -2470,20 +2474,16 @@ int main(int argc, char **argv)
 	if (quotestr == NULL)
 		quotestr = mallocstrcpy(NULL, "^([ \t]*([#:>|}]|/{2}))+");
 
-	/* Compile the quoting regex, and free it when it's good; otherwise,
-	 * retrieve and store the error message, to be shown when justifying. */
+	/* Compile the quoting regex, and exit when it's invalid. */
 	quoterc = regcomp(&quotereg, quotestr, NANO_REG_EXTENDED);
-	if (quoterc == 0) {
-		free(quotestr);
-		quotestr = NULL;
-	} else {
+	if (quoterc != 0) {
 		size_t size = regerror(quoterc, &quotereg, NULL, 0);
+		char *message = charalloc(size);
 
-		quoteerr = charalloc(size);
-		regerror(quoterc, &quotereg, quoteerr, size);
-
-		die(_("Bad quoting regex \"%s\": %s\n"), quotestr, quoteerr);
-	}
+		regerror(quoterc, &quotereg, message, size);
+		die(_("Bad quoting regex \"%s\": %s\n"), quotestr, message);
+	} else
+		free(quotestr);
 #endif /* ENABLE_JUSTIFY */
 
 #ifdef ENABLE_SPELLER

src/proto.h

@@ -108,8 +108,6 @@ extern char *punct;
 extern char *brackets;
 extern char *quotestr;
 extern regex_t quotereg;
-extern int quoterc;
-extern char *quoteerr;
 #endif
 
 extern char *word_chars;