Don't combine sed options

Combining '-i -e' into '-ie' changes behaviour, don't do that

Change-Id: Ice46c6b4f899b4c76f355cc88241dd33bc60f459
diff --git a/functions b/functions
index 9dab759..f2b12e2 100644
--- a/functions
+++ b/functions
@@ -419,7 +419,7 @@
     local file=$1
     local section=$2
     local option=$3
-    sed -ie "/^\[ *$section *\]/,/^\[.*\]/ s|^\($option[ \t]*=.*$\)|#\1|" $file
+    sed -i -e "/^\[ *$section *\]/,/^\[.*\]/ s|^\($option[ \t]*=.*$\)|#\1|" $file
 }
 
 # Uncomment an option in an INI file
@@ -428,7 +428,7 @@
     local file=$1
     local section=$2
     local option=$3
-    sed -ie "/^\[ *$section *\]/,/^\[.*\]/ s|[^ \t]*#[ \t]*\($option[ \t]*=.*$\)|\1|" $file
+    sed -i -e "/^\[ *$section *\]/,/^\[.*\]/ s|[^ \t]*#[ \t]*\($option[ \t]*=.*$\)|\1|" $file
 }
 
 
@@ -457,12 +457,12 @@
     fi
     if [[ -z "$(iniget $file $section $option)" ]]; then
         # Add it
-        sed -ie "/^\[ *$section *\]/ a\\
+        sed -i -e "/^\[ *$section *\]/ a\\
 $option = $value
 " $file
     else
         # Replace it
-        sed -ie "/^\[ *$section *\]/,/^\[.*\]/ s|^\($option[ \t]*=[ \t]*\).*$|\1$value|" $file
+        sed -i -e "/^\[ *$section *\]/,/^\[.*\]/ s|^\($option[ \t]*=[ \t]*\).*$|\1$value|" $file
     fi
 }