[openwrt/openwrt] hostapd: do not trim trailing whitespace, except for newline

[LEDE Commits]

nbd pushed a commit to openwrt/openwrt.git, branch openwrt-23.05:
https://git.openwrt.org/eaf44c56968495ea4e500ebaa11ab1932d550bcd

commit eaf44c56968495ea4e500ebaa11ab1932d550bcd
Author: Felix Fietkau <nbd at nbd.name>
AuthorDate: Mon Oct 30 18:32:24 2023 +0100

    hostapd: do not trim trailing whitespace, except for newline
    
    Fixes adding SSID or key with trailing whitespace
    
    Signed-off-by: Felix Fietkau <nbd at nbd.name>
    (cherry picked from commit a2d8226c4f45555f49542d6f047b70d44f23f7ec)
---
 package/network/services/hostapd/files/hostapd.uc | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/package/network/services/hostapd/files/hostapd.uc b/package/network/services/hostapd/files/hostapd.uc
index 88f01caa93..593840cca8 100644
--- a/package/network/services/hostapd/files/hostapd.uc
+++ b/package/network/services/hostapd/files/hostapd.uc
@@ -571,7 +571,7 @@ function iface_load_config(filename)
 
 	let bss;
 	let line;
-	while ((line = trim(f.read("line"))) != null) {
+	while ((line = rtrim(f.read("line"), "\n")) != null) {
 		let val = split(line, "=", 2);
 		if (!val[0])
 			continue;
@@ -593,7 +593,7 @@ function iface_load_config(filename)
 		push(config.radio.data, line);
 	}
 
-	while ((line = trim(f.read("line"))) != null) {
+	while ((line = rtrim(f.read("line"), "\n")) != null) {
 		if (line == "#default_macaddr")
 			bss.default_macaddr = true;