Fixes the indentation of an ouptut

Description

Due to some recent changes in the format, the output got misaligned:

 index |    weight    |             coordinates              |
       1 |     1.000000 |    0.000000    0.000000    0.000000  |

This is now fixed here:

   index |      weight  |             coordinates              |
       1 |     1.000000 |    0.000000    0.000000    0.000000  |

News snippet

Fixes the indentation of an ouptut

Checklist

• I have checked that my code follows the Octopus coding standards
• I have added tests for all the new features added in this request.

src/electrons/kpoints.F90

@@ -363,7 +363,7 @@ contains
     end if
 
     write(message(1),'(a)') ' '
-    write(message(2),'(a)') ' index |    weight    |             coordinates              |'
+    write(message(2),'(a)') '   index |      weight  |             coordinates              |'
     call messages_info(2, namespace=namespace)
 
     do ik = 1, this%reduced%npoints