Fix case of spaces in path to linux tools directory

Author: quantalume

tools/linux/maple_upload

@@ -17,7 +17,7 @@ fi
 
 
 # Get the directory where the script is running.
-DIR=$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )
+DIR=$(dirname "$(readlink -f "$0")")
 
 #  ----------------- IMPORTANT -----------------
 # The 2nd parameter to upload-reset is the delay after resetting before it exits
@@ -26,15 +26,15 @@ DIR=$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )
 # 750ms to 1500ms seems to work on my Mac
 
 
-${DIR}/upload-reset ${dummy_port_fullpath} 750
+"${DIR}/upload-reset" ${dummy_port_fullpath} 750
 
 
 #DFU_UTIL=$(dirname $0)/dfu-util/dfu-util
 DFU_UTIL=/usr/bin/dfu-util
 DFU_UTIL=${DIR}/dfu-util/dfu-util
-if [ ! -x ${DFU_UTIL} ]; then
+if [ ! -x "${DFU_UTIL}" ]; then
     echo "$0: error: cannot find ${DFU_UTIL}" >&2
     exit 2
 fi
 
-${DFU_UTIL} -d ${usbID} -a ${altID} -D ${binfile} ${dfuse_addr} -R
+"${DFU_UTIL}" -d ${usbID} -a ${altID} -D ${binfile} ${dfuse_addr} -R