Fixes the file checked for when looking at dependencies.

Code:
diff --git a/pts/distro-xml/generic-packages.xml b/pts/distro-xml/generic-packages.xml
index 3ecbf1e..c1b9a00 100644
--- a/pts/distro-xml/generic-packages.xml
+++ b/pts/distro-xml/generic-packages.xml
@@ -58,7 +58,7 @@
                        <GenericName>imlib2-development</GenericName>
                        <Title>Imlib2 Development Files</Title>
                        <PossibleNames>libimlib2-dev</PossibleNames>
-                       <FileCheck>/usr/lib/imlib2</FileCheck>
+                       <FileCheck>/usr/include/Imlib2.h</FileCheck>
                </Package>
                <Package>
                        <GenericName>java</GenericName>