Merge ~daniel-nichter/percona-toolkit/bash-tool-libs r123.

bin/pt-stalk

@@ -74,6 +74,9 @@ parse_options() {
 
    mkdir $TMPDIR/po/ 2>/dev/null
    rm -rf $TMPDIR/po/*
+   (
+      export LC_ALL="C"
+
       awk -v "po_dir"="$TMPDIR/po" '
          /^=head1 OPTIONS/ {
             getline
@@ -99,6 +102,7 @@ parse_options() {
             }
             exit
          }' $file
+   )
 
    for opt_spec in $(ls $TMPDIR/po/); do
       local opt=""

lib/bash/parse_options.sh

@@ -82,6 +82,11 @@ parse_options() {
    # from the option's POD line like "type: string; default: foo".
    mkdir $TMPDIR/po/ 2>/dev/null
    rm -rf $TMPDIR/po/*
+   (
+      # awk is stupid on some systems (e.g. Ubuntu 10) such that
+      # /^[a-z]/ incorrectly matches "Foo".  This fixes that.
+      export LC_ALL="C"
+
       awk -v "po_dir"="$TMPDIR/po" '
          /^=head1 OPTIONS/ {
             getline
@@ -109,6 +114,7 @@ parse_options() {
             }
             exit
          }' $file
+   )
 
    # Evaluate the program options into existence as global variables
    # transformed like --my-op == $OPT_MY_OP.  If an option has a default