Testsuite-found fixes

src/alire/alire-index-search.adb

@@ -24,7 +24,10 @@ package body Alire.Index.Search is
       Busy   : Simple_Logging.Ongoing :=
                  Simple_Logging.Activity ("Searching");
    begin
-      Table.Header ("NAME").Header ("DESCRIPTION");
+      --  Preserve old behavior for human output
+      if Utils.Tables.Structured_Output then
+         Table.Header ("NAME").Header ("DESCRIPTION");
+      end if;
 
       for Crate of Alire.Index.All_Crates.all loop
          if Lookup = "" or else

src/alire/alire-solutions.adb

@@ -929,7 +929,10 @@ package body Alire.Solutions is
             Trace.Always ("There are no pins");
          end if;
       else
-         Table.Header ("Crate").Header ("Target").Header ("Origin").New_Row;
+         --  To preserve old behavior with human output
+         if Utils.Tables.Structured_Output then
+            Table.Header ("Crate").Header ("Target").Header ("Origin").New_Row;
+         end if;
 
          for Dep of This.Dependencies loop
             if Dep.Is_Linked then

testsuite/tests/pin/branch/test.py

@@ -3,14 +3,12 @@
 """
 
 from drivers.alr import run_alr, alr_pin, alr_unpin, init_local_crate
-from drivers.asserts import assert_eq, assert_match
-from drivers.helpers import git_branch, git_head, init_git_repo
+from drivers.asserts import assert_match
+from drivers.helpers import git_branch, init_git_repo
 from e3.os.fs import touch
-from re import escape
 
 import re
 import os
-import shutil
 import subprocess
 
 # "remote" is going to be the remote crate