fix(_comp_split,_comp_compgen): strip periods from error message

Author: akinomyoga

bash_completion

@@ -371,11 +371,11 @@ _comp_split()
     done
     shift "$((OPTIND - 1))"
     if (($# != 2)); then
-        printf '%s\n' "bash_completion: $FUNCNAME: unexpected number of arguments." >&2
+        printf '%s\n' "bash_completion: $FUNCNAME: unexpected number of arguments" >&2
         printf '%s\n' "usage: $FUNCNAME [-a] [-F SEP] ARRAY_NAME TEXT" >&2
         return 2
     elif [[ $1 == @(*[^_a-zA-Z0-9]*|[0-9]*|''|_*|IFS|OPTIND|OPTARG|OPTERR) ]]; then
-        printf '%s\n' "bash_completion: $FUNCNAME: invalid array name '$1'." >&2
+        printf '%s\n' "bash_completion: $FUNCNAME: invalid array name '$1'" >&2
         return 2
     fi
 
@@ -518,7 +518,7 @@ _comp_compgen()
             a) _append=set ;;
             v)
                 if [[ $OPTARG == @(*[^_a-zA-Z0-9]*|[0-9]*|''|_*|IFS|OPTIND|OPTARG|OPTERR) ]]; then
-                    printf 'bash_completion: %s: -v: invalid array name `%s'\''.\n' "$FUNCNAME" "$OPTARG" >&2
+                    printf 'bash_completion: %s: -v: invalid array name `%s'\''\n' "$FUNCNAME" "$OPTARG" >&2
                     return 2
                 fi
                 _var=$OPTARG
@@ -529,7 +529,7 @@ _comp_compgen()
             R) _cur="" ;;
             C)
                 if [[ ! $OPTARG ]]; then
-                    printf 'bash_completion: %s: -C: invalid directory name `%s'\''.\n' "$FUNCNAME" "$OPTARG" >&2
+                    printf 'bash_completion: %s: -C: invalid directory name `%s'\''\n' "$FUNCNAME" "$OPTARG" >&2
                     return 2
                 fi
                 _dir=$OPTARG
@@ -543,15 +543,15 @@ _comp_compgen()
     [[ $_old_nocasematch ]] && shopt -s nocasematch
     shift "$((OPTIND - 1))"
     if (($# == 0)); then
-        printf 'bash_completion: %s: unexpected number of arguments.\n' "$FUNCNAME" >&2
+        printf 'bash_completion: %s: unexpected number of arguments\n' "$FUNCNAME" >&2
         printf 'usage: %s [-alR|-F SEP|-v ARR|-c CUR] -- ARGS...' "$FUNCNAME" >&2
         return 2
     fi
 
     if [[ $1 != -* ]]; then
         # usage: _comp_compgen [options] NAME args
         if ! declare -F "_comp_compgen_$1" &>/dev/null; then
-            printf 'bash_completion: %s: unrecognized category `%s'\'' (function _comp_compgen_%s not found).\n' "$FUNCNAME" "$1" "$1" >&2
+            printf 'bash_completion: %s: unrecognized category `%s'\'' (function _comp_compgen_%s not found)\n' "$FUNCNAME" "$1" "$1" >&2
             return 2
         fi
 
@@ -599,7 +599,7 @@ _comp_compgen()
     # "${*:2:_nopt}" becomes longer, so we test \$[0-9] and \$\{[0-9]
     # separately.
     if [[ $* == *\$[0-9]* || $* == *\$\{[0-9]* ]]; then
-        printf 'bash_completion: %s: positional parameter $1, $2, ... do not work inside this function.\n' "$FUNCNAME" >&2
+        printf 'bash_completion: %s: positional parameter $1, $2, ... do not work inside this function\n' "$FUNCNAME" >&2
         return 2
     fi