* HACKING: Update various bits.

HACKING

@@ -86,35 +86,34 @@ Avoiding org-mode runs
 The files in doc/org/ are org-mode files (a mode of Emacs that we use
 to author documents that embed executable snippets), they are used to
 generate the doc/userdoc/ HTML documentation.  If for some reason you
-don't have emacs, or you simply want not to rebuild these files, use
-another "magic touch":
+don't have emacs, or you simply want not to rebuild these files, use:
 
-  touch doc/org-stamp
+  % touch doc/org-stamp
 
 
 Silent Building with automake
 -----------------------------
 
 The classical makefiles generated by automake are very verbose during
-build beacause they prints the full command line of every stage. This
-verbosity is very usefull to help (remotely) users to compile
-Spot. Nonetheless, for developpers, these compilations lines may be
-annoying. To reduce this verbosity, just run:
+build beacause they print the full command line of every stage.  This
+verbosity is very usefull to help (remotely) users to compile Spot.
+Nonetheless, these compilations lines may be annoying for some
+developers.  To reduce this verbosity, just run:
 
-  make V=0
+  % make V=0
 
 
 Executing a single test
 -----------------------
 
 All tests in subdirectories of tests/ are executed through the
-tests/run script.  That run script defines PATH and other environment
-variables necessary so that Shell and Python scripts will use the
+tests/run script.  That script defines PATH and other environment
+variables necessary so that shell and Python scripts will use the
 version of Spot under development.  For instance to execute
 tests/core/acc.test, do:
 
-   % cd tests
-   % ./run core/acc.test
+  % cd tests
+  % ./run core/acc.test
 
 A test run this way automatically executes in verbose mode.  Any
 temporary file generated by the script can be found in
@@ -216,20 +215,19 @@ Finally generate a coverage report in HTML:
 
 This should create the directory html/.
 
+Coverage tests are automatically performed by our continuous
+integration builds.  You can find a report for each branch in the
+artifacts of the debian-unstable-gcc-coverage job.
+
 
 Link-time optimizations
 -----------------------
 
-This is currently a bit tricky to setup, because the toolchain is not
-mature enough.  However this is getting better and better.  The Debian
-packages we build nightly are mostly built with link-time optimization
-(the shared library uses link-time optimization, but the command-line
-binary are built without because of some bug with exception
-propagation).
-
+This used to be bit tricky to setup, but is now quite well supported.
+Our Debian packages are built with link-time optimization.
 
 You need:
-  1. a version of GCC (>= 4.9) with gold and pluing linker enabled.
+  1. a version of GCC (>= 4.9) with gold and pluging linker enabled.
   2. a version of Libtool that knows how to deal with
      -flto flags (Libtool 2.4.2 will work)
 
@@ -250,9 +248,9 @@ Log driver for testsuite
 
 The PASS/FAIL status for each test of the testsuite is printed by
 tools/test-driver.  This script can be changed to format the output
-differently.  When we use Teamcity (for continuous integration) we
-change the output format to something that Teamcity will understand
-with:
+differently.  In the past, when we used teamcity (for continuous
+integration) we changed the output format to something that teamcity
+would understand with:
 
   make check LOG_DRIVER=$PWD/tools/test-driver-teamcity
 
@@ -402,8 +400,9 @@ Comments
        Issue #123 / issue #123 / Fixes #123 / fixes #123
 
     (When gitlab sees a commit message containing "Fixes #123" or
-    "fixes #123" pushed to branch "next", it will automatically close
-    the issue.)
+    "fixes #123" pushed to branch "next", it should automatically
+    close the issue.  But these days, it does not seem to work and
+    often require manual closing.)
 
 Formating
 ---------