AK2: simplify new contains(), adjust placement, and update documentation

anykernel.sh

@@ -31,8 +31,13 @@ chmod -R 755 $bin;
 mkdir -p $ramdisk $split_img;
 
 OUTFD=/proc/self/fd/$1;
+
+# ui_print <text>
 ui_print() { echo -e "ui_print $1\nui_print" > $OUTFD; }
 
+# contains <string> <substring>
+contains() { test "${1#*$2}" != "$1" && return 0 || return 1; }
+
 # dump boot and extract ramdisk
 dump_boot() {
   dd if=$block of=/tmp/anykernel/boot.img;
@@ -50,11 +55,6 @@ dump_boot() {
   cp -af /tmp/anykernel/rdtmp/* $ramdisk;
 }
 
-# contains <string> <substring>
-contains() {
-  if test "${1#*$2}" != "$1"; then return 0; else return 1; fi;
-}
-
 # repack ramdisk then build and write image
 write_boot() {
   cd $split_img;