Renamed two scripts to follow the verb-noun.sh convention

Not really a convention yet, but it just makes sense to use.

fetch-sources.sh

@@ -0,0 +1,18 @@
+#!/bin/sh -e
+mkdir -p sources
+cd sources
+cat ../sources.list | while read line; do
+    HASH=$(echo $line | cut -d"," -f1)
+    URL=$(echo $line | cut -d"," -f2)
+    CANONICAL=$(echo $line | cut -d"," -f3)
+    if [ -z "$CANONICAL" ]; then
+        OUTPUT=$(basename $URL)
+    else
+        OUTPUT=$CANONICAL
+    fi
+    if [ ! -f "$OUTPUT" ]; then
+        echo $OUTPUT
+        curl -L $URL -o $OUTPUT
+    fi
+    echo "$HASH  $OUTPUT" | sha256sum -c -
+done