Captialize meta.description of all packages

In line with the Nixpkgs manual.

A mechanical change, done with this command:

  find pkgs -name "*.nix" | \
      while read f; do \
          sed -e 's/description\s*=\s*"\([a-z]\)/description = "\u\1/' -i "$f"; \
      done

I manually skipped some:

* Descriptions starting with an abbreviation, a user name or package name
* Frequently generated expressions (haskell-packages.nix)

pkgs/tools/security/gnupg/1.nix

@@ -13,7 +13,7 @@ stdenv.mkDerivation rec {
   doCheck = true;
 
   meta = {
-    description = "free implementation of the OpenPGP standard for encrypting and signing data";
+    description = "Free implementation of the OpenPGP standard for encrypting and signing data";
     homepage = http://www.gnupg.org/;
     license = stdenv.lib.licenses.gpl3Plus;
     platforms = stdenv.lib.platforms.gnu; # arbitrary choice

pkgs/tools/security/gnupg/20.nix

@@ -45,7 +45,7 @@ stdenv.mkDerivation rec {
 
   meta = {
     homepage = "http://gnupg.org/";
-    description = "free implementation of the OpenPGP standard for encrypting and signing data";
+    description = "Free implementation of the OpenPGP standard for encrypting and signing data";
     license = stdenv.lib.licenses.gpl3Plus;
 
     longDescription = ''

pkgs/tools/security/gnupg/21.nix

@@ -35,7 +35,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     homepage = http://gnupg.org;
-    description = "a complete and free implementation of the OpenPGP standard";
+    description = "A complete and free implementation of the OpenPGP standard";
     license = licenses.gpl3Plus;
     maintainers = with maintainers; [ wkennington peti fpletz ];
     platforms = platforms.all;

pkgs/tools/security/stricat/default.nix

@@ -15,7 +15,7 @@ stdenv.mkDerivation rec {
   '';
 
   meta = {
-    description = "multi-use cryptographic tool based on the STRIBOB algorithm";
+    description = "Multi-use cryptographic tool based on the STRIBOB algorithm";
     homepage    = "https://www.stribob.com/stricat/";
     license     = stdenv.lib.licenses.bsd3;
     platforms   = stdenv.lib.platforms.unix;

pkgs/tools/security/vidalia/default.nix

@@ -16,7 +16,7 @@ stdenv.mkDerivation rec {
   meta = with stdenv.lib; {
     homepage = https://www.torproject.org/projects/vidalia.html.en;
     repositories.git = https://git.torproject.org/vidalia;
-    description = "a cross-platform graphical controller for the Tor software, built using the Qt framework";
+    description = "A cross-platform graphical controller for the Tor software, built using the Qt framework";
     license = licenses.gpl2Plus;
     maintainers = [ maintainers.phreedom ];
     platforms = platforms.all;

pkgs/tools/security/volatility/default.nix

@@ -16,7 +16,7 @@ buildPythonApplication rec {
 
   meta = with stdenv.lib; {
     homepage = https://code.google.com/p/volatility;
-    description = "advanced memory forensics framework";
+    description = "Advanced memory forensics framework";
     maintainers = with maintainers; [ bosu ];
     license = stdenv.lib.licenses.gpl2Plus;
   };