Merge pull request #44 from chrisob/linux_fix

Fix sed syntax for Linux

Author: ekalinin

gh-md-toc

@@ -110,20 +110,20 @@ gh_toc(){
         local toc=`gh_toc_md2html "$gh_src" | gh_toc_grab "$gh_src_copy"`
         echo "$toc"
         if [ "$need_replace" = "yes" ]; then
-            local ts="\<\!--ts--\>"
-            local te="\<\!--te--\>"
+            local ts="<\!--ts-->"
+            local te="<\!--te-->"
             local dt=`date +'%F_%H%M%S'`
             local ext=".orig.${dt}"
             local toc_path="${gh_src}.toc.${dt}"
             local toc_footer="<!-- Added by: `whoami`, at: `date --iso-8601='minutes'` -->"
             # http://fahdshariff.blogspot.ru/2012/12/sed-mutli-line-replacement-between-two.html
             # clear old TOC
-            sed -i "${ext}" -e "/${ts}/,/${te}/ {//!d;}" "$gh_src"
+            sed -i${ext} "/${ts}/,/${te}/{//!d}" "$gh_src"
             # create toc file
             echo "${toc}" > "${toc_path}"
             echo -e "\n${toc_footer}\n" >> "$toc_path"
             # insert toc file
-            sed -i "" -e "/${ts}/r ${toc_path}" "$gh_src"
+            sed -i "/${ts}/r ${toc_path}" "$gh_src"
             echo
             echo "!! TOC was added into: '$gh_src'"
             echo "!! Origin version of the file: '${gh_src}${ext}'"