scripts: Use $(..) instead of deprecated `..`

This fixes these warnings from shellcheck:

    ^-- SC2006: Use $(..) instead of deprecated `..`

Update also a comment using the same pattern.

Signed-off-by: Stefan Weil <sw@weilnetz.de>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>

1 files changed, 3 insertions, 3 deletions

diff --git a/scripts/create_config b/scripts/create_config
index b2d2ebb..b31ca9b 100755
--- a/scripts/create_config
+++ b/scripts/create_config
@@ -16,7 +16,7 @@ case $line in
  qemu_*dir=*) # qemu-specific directory configuration
     name=${line%=*}
     value=${line#*=}
-    define_name=`echo $name | LC_ALL=C tr '[a-z]' '[A-Z]'`
+    define_name=$(echo $name | LC_ALL=C tr '[a-z]' '[A-Z]')
     eval "define_value=\"$value\""
     echo "#define CONFIG_$define_name \"$define_value\""
     # save for the next definitions
@@ -72,7 +72,7 @@ case $line in
     ;;
  ARCH=*) # configuration
     arch=${line#*=}
-    arch_name=`echo $arch | LC_ALL=C tr '[a-z]' '[A-Z]'`
+    arch_name=$(echo $arch | LC_ALL=C tr '[a-z]' '[A-Z]')
     echo "#define HOST_$arch_name 1"
     ;;
  HOST_USB=*)
@@ -92,7 +92,7 @@ case $line in
     ;;
  TARGET_BASE_ARCH=*) # configuration
     target_base_arch=${line#*=}
-    base_arch_name=`echo $target_base_arch | LC_ALL=C tr '[a-z]' '[A-Z]'`
+    base_arch_name=$(echo $target_base_arch | LC_ALL=C tr '[a-z]' '[A-Z]')
     echo "#define TARGET_$base_arch_name 1"
     ;;
  TARGET_XML_FILES=*)