bug#71695: guix-install.sh REQUIRE check for SYSV_INIT_REQUIRE

[Nyi Nyi Zaw]

Cause>>

>                                                                                                                                                        
>             
>                                  MX linux
>               23.3(Debian 12.5 “bookworm” base) return sysv-init as
>               lowercase with dash                                    
>             
>                                  which
>               cause install script fails with sysv-init_REQUIRE[@]:
>               invalid variable name                                     
>             
>                                                                                                                                                       
>

ERROR>>

>                 
>             https://www.gnu.org/software/guix/
>                                                                                                  
>             
>                                This
>               script installs GNU Guix on your system                                                                            
>             
>                                To
>               uninstall, pass in the '--uninstall'
>               parameter.
>                                                                                    
>             
>                                Press
>               return to continue...
>                                                                                                           
>             
>                                [1718953785.295]:
>               Starting installation (Fri Jun 21 01:39:45 PM +0630 2024)
>                                                           
>             
>                                [1718953785.306]:
>               [ INFO ] init system is: sysv-init
>                                                                                  
>             
>                                ./guix-install.sh:
>               line 164: sysv-init_REQUIRE[@]: invalid variable name    
>                                                          
>

Fix Patch >> Convert sysv-init to SYSV_INIT_REQUIRE to match with variable name

>                                  ---
>               guix-install.sh     2024-06-21 15:22:03.000000000 +0630
>                                                                         
>             
>                                  +++
>               guix-install-patched.sh     2024-06-21 16:09:17.454668652
>               +0630                                                   
>             
>                                  @@
>               -157,7 +157,9 @@
>                                                                                                   
>             
>                                                                                                                                                        
>             
>                                  add_init_sys_require()
>                                                                                                
>             
>                                  { # Add the
>               elements of FOO_INIT_SYS to REQUIRE                                                                       
>             
>                                      -
>                  local init_require="${INIT_SYS}_REQUIRE[@]"
>                                                                                
>             
>                                      +
>                  # Convert
>               INIT_SYS return string to uppercase and replace dash with
>               underscore                               
>             
>                                      +
>                  local init_require="${INIT_SYS^^}_REQUIRE[@]"
>                                                                              
>             
>                                      +
>                  init_require="${init_require//-/_}"
>                                                                                        
>             
>                                      if [[ ! -z "$init_require" ]]; then
>                                                                                             
>             
>                                          # Have to
>               add piecemeal because ${!foo[@]} performs direct array key
>                                                      
>             
>                                          # expansion,
>               not indirect plain array expansion.                                                             
>