treewide: Per RFC45, remove all unquoted URLs

pkgs/applications/networking/sync/acd_cli/default.nix

@@ -32,7 +32,7 @@ buildPythonApplication rec {
 
   meta = with stdenv.lib; {
     description = "A command line interface and FUSE filesystem for Amazon Cloud Drive";
-    homepage = https://github.com/yadayada/acd_cli;
+    homepage = "https://github.com/yadayada/acd_cli";
     license = licenses.gpl2;
     platforms = platforms.linux;
     maintainers = with maintainers; [ edwtjo ];

pkgs/applications/networking/sync/backintime/common.nix

@@ -32,7 +32,7 @@ in stdenv.mkDerivation rec {
     '';
 
   meta = {
-    homepage = https://github.com/bit-team/backintime;
+    homepage = "https://github.com/bit-team/backintime";
     description = "Simple backup tool for Linux";
     license = stdenv.lib.licenses.gpl2;
     maintainers = [ ];

pkgs/applications/networking/sync/casync/default.nix

@@ -44,7 +44,7 @@ stdenv.mkDerivation {
 
   meta = with stdenv.lib; {
     description = "Content-Addressable Data Synchronizer";
-    homepage    = https://github.com/systemd/casync;
+    homepage    = "https://github.com/systemd/casync";
     license     = licenses.lgpl21;
     platforms   = platforms.linux;
     maintainers = with maintainers; [ flokli ];

pkgs/applications/networking/sync/desync/default.nix

@@ -19,7 +19,7 @@ buildGoPackage rec {
   meta = with stdenv.lib; {
     description = "Content-addressed binary distribution system";
     longDescription = "An alternate implementation of the casync protocol and storage mechanism with a focus on production-readiness";
-    homepage = https://github.com/folbricht/desync;
+    homepage = "https://github.com/folbricht/desync";
     license = licenses.bsd3;
     platforms = platforms.unix; # *may* work on Windows, but varies between releases.
     maintainers = [ maintainers.chaduffy ];

pkgs/applications/networking/sync/lsyncd/default.nix

@@ -34,7 +34,7 @@ stdenv.mkDerivation rec {
   ];
 
   meta = with stdenv.lib; {
-    homepage = https://github.com/axkibe/lsyncd;
+    homepage = "https://github.com/axkibe/lsyncd";
     description = "A utility that synchronizes local directories with remote targets";
     license = licenses.gpl2;
     platforms = platforms.linux;

pkgs/applications/networking/sync/rclone/default.nix

@@ -33,7 +33,7 @@ buildGoPackage rec {
 
   meta = with stdenv.lib; {
     description = "Command line program to sync files and directories to and from major cloud storage";
-    homepage = https://rclone.org;
+    homepage = "https://rclone.org";
     license = licenses.mit;
     maintainers = with maintainers; [ danielfullmer ];
     platforms = platforms.all;

pkgs/applications/networking/sync/rsync/base.nix

@@ -15,7 +15,7 @@ rec {
 
   meta = with stdenv.lib; {
     description = "Fast incremental file transfer utility";
-    homepage = https://rsync.samba.org/;
+    homepage = "https://rsync.samba.org/";
     license = licenses.gpl3Plus;
     platforms = platforms.unix;
   };

pkgs/applications/networking/sync/unison/default.nix

@@ -45,7 +45,7 @@ stdenv.mkDerivation (rec {
   dontStrip = !ocaml.nativeCompilers;
 
   meta = {
-    homepage = https://www.cis.upenn.edu/~bcpierce/unison/;
+    homepage = "https://www.cis.upenn.edu/~bcpierce/unison/";
     description = "Bidirectional file synchronizer";
     license = stdenv.lib.licenses.gpl3Plus;
     maintainers = with stdenv.lib.maintainers; [viric];