Use common .gitignore suffix and gitignore* prefix for most ignores

build

@@ -3,8 +3,8 @@ set -eu
 help_text='
 '
 arch=x86_64
-rm -f br2_cli
-touch br2_cli
+rm -f br2_cli.gitignore
+touch br2_cli.gitignore
 configure=true
 config_fragments='br2'
 extra_make_args=''
@@ -23,7 +23,7 @@ while getopts 'a:b:c:Cgj:IiK:klp:qSv' OPT; do
       config_fragments="$config_fragments $OPTARG"
     ;;
     c)
-      echo "$OPTARG" >> br2_cli
+      echo "$OPTARG" >> br2_cli.gitignore
     ;;
     C)
       configure=false
@@ -36,17 +36,17 @@ while getopts 'a:b:c:Cgj:IiK:klp:qSv' OPT; do
 BR2_TARGET_ROOTFS_CPIO=n
 BR2_TARGET_ROOTFS_EXT2=n
 BR2_TARGET_ROOTFS_INITRAMFS=y
-" >> br2_cli
+" >> br2_cli.gitignore
     ;;
     i)
       echo "
 BR2_TARGET_ROOTFS_CPIO=y
 BR2_TARGET_ROOTFS_EXT2=n
 BR2_TARGET_ROOTFS_INITRAMFS=n
-" >> br2_cli
+" >> br2_cli.gitignore
     ;;
     j)
-      echo "$OPTARG" >> br2_cli
+      echo "$OPTARG" >> br2_cli.gitignore
     ;;
     k)
       extra_make_args="$extra_make_args kernel_module-reconfigure"
@@ -99,7 +99,7 @@ root_dir="$(pwd)"
 buildroot_dir="${root_dir}/buildroot"
 out_dir="${buildroot_dir}/output.${arch_dir}~"
 config_file="${out_dir}/.config"
-config_fragments="$config_fragments br2_cli"
+config_fragments="$config_fragments br2_cli.gitignore"
 
 if "$configure"; then
   cd "${buildroot_dir}"