Reorder commands logically

Dockerfile

@@ -29,6 +29,7 @@ RUN \
 RUN pip install pyocd
 
 RUN \
+    wget "${KEIL_URL}" --progress=bar:force:noscroll -O MDK537.exe; \
     [ "$DEBUG" -eq 1 ] && { \
         apt-get update; \
         apt-get install -y \
@@ -56,7 +57,6 @@ RUN \
         [ -z "$1" ] && cat || echo "$1"; \
         echo "$heading"; \
     }; \
-    wget "${KEIL_URL}" --progress=bar:force:noscroll -O MDK537.exe; \
     # Handle console output of MDK537 installer
     handle_output() { \
         # A pattern that is supposed to indicates that wine got stuck
@@ -83,9 +83,9 @@ RUN \
     }; \
     # Run actual MDK537 installer
     install_keil() { \
-        printHeading "Starting ARM Keil installation"; \
         try="$1"; \
         logFile="$(mktemp)"; \
+        printHeading "Starting ARM Keil installation"; \
         # Run installer asynchronously
         { \
             { \