build: eradicate the --disable-wrapping-as-root configure option

Hard-wrapping is disabled by default for any user, so this special
configure option is no longer needed.

configure.ac

@@ -298,12 +298,6 @@ if test "x$enable_wrapping" != xno; then
 	AC_DEFINE(ENABLE_WRAPPING, 1, [Define this to have hard text wrapping.])
 fi
 
-AC_ARG_ENABLE(wrapping-as-root,
-AS_HELP_STRING([--disable-wrapping-as-root], [Disable wrapping of text as root by default]))
-if test "x$enable_wrapping_as_root" = xno; then
-	AC_DEFINE(DISABLE_ROOTWRAPPING, 1, [Define this to disable text wrapping as root by default.])
-fi
-
 AC_ARG_ENABLE(debug,
 AS_HELP_STRING([--enable-debug], [Enable debugging (disabled by default)]))
 if test "x$enable_debug" = xyes; then

doc/nano.texi

@@ -1683,10 +1683,6 @@ chances are you only want this feature when you're working on the nano source.
 Disables Native Language support.  This will disable the use of any
 available GNU @command{nano} translations.
 
-@item --disable-wrapping-as-root
-Disable hard-wrapping of overlong lines by default when @command{nano}
-is run as root.
-
 @item --enable-utf8
 Enable support for reading and writing Unicode files.  This will require
 either a wide version of curses, or a UTF-8-enabled version of Slang.

src/nano.c

@@ -1016,9 +1016,6 @@ void version(void)
 #endif
 #endif /* !NANO_TINY */
 
-#ifdef DISABLE_ROOTWRAPPING
-	printf(" --disable-wrapping-as-root");
-#endif
 #ifdef DEBUG
 	printf(" --enable-debug");
 #endif
@@ -2071,13 +2068,6 @@ int main(int argc, char **argv)
 						" -- please report a bug\n", (int)MB_CUR_MAX);
 #endif
 
-#if !defined(ENABLE_NANORC) && defined(DISABLE_ROOTWRAPPING)
-	/* If we don't have rcfile support, --disable-wrapping-as-root is
-	 * used, and we're root, turn wrapping off. */
-	if (geteuid() == NANO_ROOT_UID)
-		SET(NO_WRAP);
-#endif
-
 	/* Set sensible defaults, different from what Pico does. */
 	SET(NO_WRAP);
 	SET(NO_NEWLINES);
@@ -2398,17 +2388,10 @@ int main(int argc, char **argv)
 		for (i = 0; i < sizeof(flags) / sizeof(flags[0]); i++)
 			flags[i] |= flags_cmdline[i];
 	}
-#ifdef DISABLE_ROOTWRAPPING
-	/* If we don't have any rcfiles, --disable-wrapping-as-root is used,
-	 * and we're root, turn wrapping off. */
-	else if (geteuid() == NANO_ROOT_UID)
-		SET(NO_WRAP);
-#endif
 #endif /* ENABLE_NANORC */
 
 #ifdef ENABLE_WRAPPING
-	/* Override a "set nowrap" in an rcfile (or a --disable-wrapping-as-root)
+	/* A --fill on the command line overrides a "set nowrap" in an rcfile. */
-	 * if --fill was given on the command line and not undone by --nowrap. */
 	if (forced_wrapping)
 		UNSET(NO_WRAP);
 #endif

src/rcfile.c

@@ -1225,13 +1225,6 @@ void do_rcfiles(void)
 	nanorc = mallocstrcpy(nanorc, SYSCONFDIR "/nanorc");
 	parse_one_nanorc();
 
-	/* When configured with --disable-wrapping-as-root, turn wrapping off
-	 * for root, so that only root's .nanorc or --fill can turn it on. */
-#ifdef DISABLE_ROOTWRAPPING
-	if (geteuid() == NANO_ROOT_UID)
-		SET(NO_WRAP);
-#endif
-
 	get_homedir();
 	xdgconfdir = getenv("XDG_CONFIG_HOME");