examples: Fix shellcheck warnings in wps-ap-cli

use 'printf' instead of 'echo -n', to suppress the following warning:

In POSIX sh, echo flags are undefined. [SC2039]

Signed-off-by: Davide Caratti <davide.caratti@gmail.com>

diff --git a/wpa_supplicant/examples/wps-ap-cli b/wpa_supplicant/examples/wps-ap-cli
index cc2cff2ebc24f2d6d78639a6dd0c14e041e5bb22..15d913ef1fae6b82426781969f48f103cd263644 100755 (executable)
--- a/wpa_supplicant/examples/wps-ap-cli
+++ b/wpa_supplicant/examples/wps-ap-cli
@@ -14,12 +14,12 @@ pbc()
 enter_pin()
 {
        echo "Enter a PIN from a station to be enrolled to the network."
-       echo -n "Enrollee PIN: "
+       printf "Enrollee PIN: "
        read pin
        cpin=`$CLI wps_check_pin "$pin" | tail -1`
        if [ "$cpin" = "FAIL-CHECKSUM" ]; then
                echo "Checksum digit is not valid"
-               echo -n "Do you want to use this PIN (y/n)? "
+               printf "Do you want to use this PIN (y/n)? "
                read resp
                case "$resp" in
                        y*)
@@ -52,7 +52,7 @@ main_menu()
        echo "3: Show current configuration"
        echo "0: Exit wps-ap-cli"
 
-       echo -n "Command: "
+       printf "Command: "
        read cmd
 
        case "$cmd" in