add -e flag to echo best match only (no cd)

-l lists and does not cd, but has enough extra stuff going on to make
it a bit of a pain if you want to parse out just the best match for
your own nefarious purposes - therefore this.
h/t @synthetiv. Closes #161

README

@@ -23,6 +23,8 @@ DESCRIPTION
 OPTIONS
        -c     restrict matches to subdirectories of the current directory
 
+       -e     echo the best match, don't cd
+
        -h     show a brief help message
 
        -l     list only

z.1

@@ -22,6 +22,9 @@ OPTIONS
 \fB\-c\fR
 restrict matches to subdirectories of the current directory
 .TP
+\fB\-e\fR
+echo the best match, don't cd
+.TP
 \fB\-h\fR
 show a brief help message
 .TP

z.sh

@@ -106,11 +106,12 @@ _z() {
             --) while [ "$1" ]; do shift; local fnd="$fnd${fnd:+ }$1";done;;
             -*) local opt=${1:1}; while [ "$opt" ]; do case ${opt:0:1} in
                     c) local fnd="^$PWD $fnd";;
-                    h) echo "${_Z_CMD:-z} [-chlrtx] args" >&2; return;;
-                    x) sed -i -e "\:^${PWD}|.*:d" "$datafile";;
+                    e) local nocd=1;;
+                    h) echo "${_Z_CMD:-z} [-cehlrtx] args" >&2; return;;
                     l) local list=1;;
                     r) local typ="rank";;
                     t) local typ="recent";;
+                    x) sed -i -e "\:^${PWD}|.*:d" "$datafile";;
                 esac; opt=${opt:1}; done;;
              *) local fnd="$fnd${fnd:+ }$1";;
         esac; local last=$1; [ "$#" -gt 0 ] && shift; done
@@ -198,7 +199,12 @@ _z() {
             }
         ')"
         [ $? -gt 0 ] && return
-        [ "$cd" ] && cd "$cd"
+        [ "$cd" ] || return
+        if [ "$nocd" ]; then
+            echo "$cd"
+        else
+            cd "$cd"
+        fi
     fi
 }