The slowness of urls-https came from calling sed multiple times

Calling it only once means that files are read and written only once too.

Total time it takes to run it on the actual fdroiddata dropped from ~25sec to
~6sec.

tools/urls-https.sh

@@ -7,18 +7,18 @@
 # meta data leaks.
 
 for f in metadata/*.txt; do
-    # this shows progress based on 1st letter of package name
-    printf `echo $f | cut -b10`
-    sed -i 's,http://dl.google.com,https://dl.google.com,g' $f
-    sed -i 's,http://pypi,https://pypi,g' $f
-    sed -i 's,http://code.google.com,https://code.google.com,g' $f
-    sed -i 's,http://github.com,https://github.com,g' $f
-    sed -i 's,git://github.com,https://github.com,g' $f
-    sed -i 's,http://\([^.]*\).googlecode.com/svn,https://\1.googlecode.com/svn,g' $f
-    sed -i 's,http://svn.apache.org/repos,https://svn.apache.org/repos,g' $f
-    sed -i 's,http://svn.code.sf.net,https://svn.code.sf.net,g' $f
-    sed -i 's,svn://svn.code.sf.net,https://svn.code.sf.net,g' $f
-    sed -i 's,http://gitorious.org,https://gitorious.org,g' $f
-    sed -i 's,git://gitorious.org,https://gitorious.org,g' $f
+	# this shows progress based on 1st letter of package name
+	printf `echo $f | cut -b10`
+	sed -i -e 's,http://dl.google.com,https://dl.google.com,g' \
+		-e 's,http://pypi,https://pypi,g' \
+		-e 's,http://code.google.com,https://code.google.com,g' \
+		-e 's,http://github.com,https://github.com,g' \
+		-e 's,git://github.com,https://github.com,g' \
+		-e 's,http://\([^.]*\).googlecode.com/svn,https://\1.googlecode.com/svn,g' \
+		-e 's,http://svn.apache.org/repos,https://svn.apache.org/repos,g' \
+		-e 's,http://svn.code.sf.net,https://svn.code.sf.net,g' \
+		-e 's,svn://svn.code.sf.net,https://svn.code.sf.net,g' \
+		-e 's,http://gitorious.org,https://gitorious.org,g' \
+		-e 's,git://gitorious.org,https://gitorious.org,g' $f
 done
-echo ""
+echo