scripts: first batch of hg->git conversion

Replace calls to 'hg' with as-close-as-possible equivalents in git.

Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr>

scripts/mk-patch.sh

@@ -1,5 +1,8 @@
 #!/bin/sh
 
+echo "Broken, fix hg->git conversion first" >&2
+exit 1
+
 repos="$1"
 pdir="$2"
 if [ -z "${repos}" -o ! -d "${repos}" -o -z "${pdir}" -o ! -d "${pdir}" ];then

scripts/mk-release.sh

@@ -1,5 +1,7 @@
 #!/bin/bash
-#set -x
+
+echo "Broken, fix hg->git conversion first" >&2
+exit 1
 
 export LC_ALL=C
 

scripts/showSamples.sh

@@ -1,6 +1,9 @@
 #!/bin/sh
 # Yes, this is supposed to be a POSIX-compliant shell script.
 
+echo "Broken, fix hg->git conversion first" >&2
+exit 1
+
 # Parses all samples on the command line, and for each of them, prints
 # the versions of the main tools