Rename path_list to string_list

The name path_list was correct for the first usage of that data structure,
but it really is a general-purpose string list.

$ perl -i -pe 's/path-list/string-list/g' $(git grep -l path-list)
$ perl -i -pe 's/path_list/string_list/g' $(git grep -l path_list)
$ git mv path-list.h string-list.h
$ git mv path-list.c string-list.c
$ perl -i -pe 's/has_path/has_string/g' $(git grep -l has_path)
$ perl -i -pe 's/path/string/g' string-list.[ch]
$ git mv Documentation/technical/api-path-list.txt \
	Documentation/technical/api-string-list.txt
$ perl -i -pe 's/strdup_paths/strdup_strings/g' $(git grep -l strdup_paths)

... and then fix all users of string-list to access the member "string"
instead of "path".

Documentation/technical/api-string-list.txt needed some rewrapping, too.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
diff --git a/builtin-apply.c b/builtin-apply.c
index e15471b..2216a0b 100644
--- a/builtin-apply.c
+++ b/builtin-apply.c
@@ -12,7 +12,7 @@
 #include "blob.h"
 #include "delta.h"
 #include "builtin.h"
-#include "path-list.h"
+#include "string-list.h"
 
 /*
  *  --check turns on checking that the working tree matches the
@@ -194,7 +194,7 @@
  * the case where more than one patches touch the same file.
  */
 
-static struct path_list fn_table;
+static struct string_list fn_table;
 
 static uint32_t hash_line(const char *cp, size_t len)
 {
@@ -2250,12 +2250,12 @@
 
 static struct patch *in_fn_table(const char *name)
 {
-	struct path_list_item *item;
+	struct string_list_item *item;
 
 	if (name == NULL)
 		return NULL;
 
-	item = path_list_lookup(name, &fn_table);
+	item = string_list_lookup(name, &fn_table);
 	if (item != NULL)
 		return (struct patch *)item->util;
 
@@ -2264,7 +2264,7 @@
 
 static void add_to_fn_table(struct patch *patch)
 {
-	struct path_list_item *item;
+	struct string_list_item *item;
 
 	/*
 	 * Always add new_name unless patch is a deletion
@@ -2272,7 +2272,7 @@
 	 * file creations and copies
 	 */
 	if (patch->new_name != NULL) {
-		item = path_list_insert(patch->new_name, &fn_table);
+		item = string_list_insert(patch->new_name, &fn_table);
 		item->util = patch;
 	}
 
@@ -2281,7 +2281,7 @@
 	 * later chunks shouldn't patch old names
 	 */
 	if ((patch->new_name == NULL) || (patch->is_rename)) {
-		item = path_list_insert(patch->old_name, &fn_table);
+		item = string_list_insert(patch->old_name, &fn_table);
 		item->util = (struct patch *) -1;
 	}
 }
@@ -3051,7 +3051,7 @@
 	int skipped_patch = 0;
 
 	/* FIXME - memory leak when using multiple patch files as inputs */
-	memset(&fn_table, 0, sizeof(struct path_list));
+	memset(&fn_table, 0, sizeof(struct string_list));
 	strbuf_init(&buf, 0);
 	patch_input_file = filename;
 	read_patch_file(&buf, fd);