Merge pull request #14003 from Bo98/linux-req

Update Linux requirements

Library/Homebrew/os/linux/kernel.rb

@@ -13,7 +13,7 @@ module OS
 
       sig { returns(Version) }
       def minimum_version
-        Version.new "2.6.32"
+        Version.new "3.2"
       end
 
       def below_minimum_version?

docs/Homebrew-on-Linux.md

@@ -48,8 +48,7 @@ If you're using an older distribution of Linux, installing your first package wi
 
 ## Requirements
 
-- **GCC** 4.7.0 or newer
-- **Linux** 2.6.32 or newer
+- **Linux** 3.2 or newer
 - **Glibc** 2.13 or newer
 - **64-bit x86_64** CPU
 
@@ -66,7 +65,6 @@ To install build tools, paste at a terminal prompt:
   ```sh
   sudo yum groupinstall 'Development Tools'
   sudo yum install procps-ng curl file git
-  sudo yum install libxcrypt-compat # needed by Fedora 30 and up
   ```
 
 ### ARM (unsupported)