treewide: Per RFC45, remove all unquoted URLs

pkgs/development/tools/profiling/heaptrack/default.nix

@@ -23,7 +23,7 @@ mkDerivation rec {
 
   meta = with lib; {
     description = "Heap memory profiler for Linux";
-    homepage = https://github.com/KDE/heaptrack;
+    homepage = "https://github.com/KDE/heaptrack";
     license = licenses.lgpl21Plus;
     maintainers = with maintainers; [ gebner ];
     platforms = platforms.linux;

pkgs/development/tools/profiling/oprofile/default.nix

@@ -46,7 +46,7 @@ stdenv.mkDerivation rec {
       modules, the kernel, shared libraries, and applications.
     '';
     license = stdenv.lib.licenses.gpl2;
-    homepage = http://oprofile.sourceforge.net/;
+    homepage = "http://oprofile.sourceforge.net/";
 
     platforms = stdenv.lib.platforms.linux;
     maintainers = [ ];

pkgs/development/tools/profiling/pprof/default.nix

@@ -18,7 +18,7 @@ buildGoPackage rec {
 
   meta = with stdenv.lib; {
     description = "A tool for visualization and analysis of profiling data";
-    homepage = https://github.com/google/pprof;
+    homepage = "https://github.com/google/pprof";
     license = licenses.asl20;
     longDescription = ''
       pprof reads a collection of profiling samples in profile.proto format and generates reports to visualize and help analyze the data. It can generate both text and graphical reports (through the use of the dot visualization package).

pkgs/development/tools/profiling/sysprof/default.nix

@@ -54,7 +54,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "System-wide profiler for Linux";
-    homepage = https://wiki.gnome.org/Apps/Sysprof;
+    homepage = "https://wiki.gnome.org/Apps/Sysprof";
     longDescription = ''
       Sysprof is a sampling CPU profiler for Linux that uses the perf_event_open
       system call to profile the entire system, not just a single

pkgs/development/tools/profiling/systemtap/default.nix

@@ -4,7 +4,7 @@
 
 let
   ## fetchgit info
-  url = git://sourceware.org/git/systemtap.git;
+  url = "git://sourceware.org/git/systemtap.git";
   rev = "release-${version}";
   sha256 = "0mmpiq7bsrwhp7z07a1pwka4q6d2fbmdx5wp83nxj31rvdxhqwnw";
   version = "4.1";
@@ -40,7 +40,7 @@ in runCommand "systemtap-${kernel.version}-${version}" {
   inherit stapBuild kernelBuildDir;
   buildInputs = [ makeWrapper ];
   meta = {
-    homepage = https://sourceware.org/systemtap/;
+    homepage = "https://sourceware.org/systemtap/";
     repositories.git = url;
     description = "Provides a scripting language for instrumentation on a live kernel plus user-space";
     license = lib.licenses.gpl2;