[tracker] libtracker-data: Use right constness in some internal calls

[Carlos Garnacho <carlosg src gnome org>]

commit 0361229856c18cfff8f2c2deff6b9d876422ba66
Author: Carlos Garnacho <carlosg gnome org>
Date:   Sat Nov 19 23:34:28 2016 +0100

    libtracker-data: Use right constness in some internal calls
    
    The string array is fully const (i.e. we deep copy it), so make
    these functions have the right constness.

 src/libtracker-data/tracker-db-interface-sqlite.c |    6 +++---
 src/libtracker-data/tracker-db-interface.h        |    2 +-
 2 files changed, 4 insertions(+), 4 deletions(-)
---
diff --git a/src/libtracker-data/tracker-db-interface-sqlite.c 
b/src/libtracker-data/tracker-db-interface-sqlite.c
index fa74f5c..b28d895 100644
--- a/src/libtracker-data/tracker-db-interface-sqlite.c
+++ b/src/libtracker-data/tracker-db-interface-sqlite.c
@@ -146,7 +146,7 @@ static TrackerDBCursor    *tracker_db_cursor_sqlite_new             (sqlite3_stm
                                                                      TrackerDBStatement    *ref_stmt,
                                                                      TrackerPropertyType   *types,
                                                                      gint                   n_types,
-                                                                     const gchar          **variable_names,
+                                                                     const gchar * const   *variable_names,
                                                                      gint                   n_variable_names,
                                                                      gboolean               threadsafe);
 static gboolean            tracker_db_cursor_get_boolean            (TrackerSparqlCursor   *cursor,
@@ -2548,7 +2548,7 @@ tracker_db_cursor_sqlite_new (sqlite3_stmt        *sqlite_stmt,
                               TrackerDBStatement  *ref_stmt,
                               TrackerPropertyType *types,
                               gint                 n_types,
-                              const gchar        **variable_names,
+                              const gchar * const *variable_names,
                               gint                 n_variable_names,
                               gboolean             threadsafe)
 {
@@ -2920,7 +2920,7 @@ TrackerDBCursor *
 tracker_db_statement_start_sparql_cursor (TrackerDBStatement   *stmt,
                                           TrackerPropertyType  *types,
                                           gint                  n_types,
-                                          const gchar         **variable_names,
+                                          const gchar * const  *variable_names,
                                           gint                  n_variable_names,
                                           gboolean              threadsafe,
                                           GError              **error)
diff --git a/src/libtracker-data/tracker-db-interface.h b/src/libtracker-data/tracker-db-interface.h
index 0352a4d..2d6a88f 100644
--- a/src/libtracker-data/tracker-db-interface.h
+++ b/src/libtracker-data/tracker-db-interface.h
@@ -127,7 +127,7 @@ TrackerDBCursor *       tracker_db_statement_start_cursor            (TrackerDBS
 TrackerDBCursor *       tracker_db_statement_start_sparql_cursor     (TrackerDBStatement         *stmt,
                                                                       TrackerPropertyType        *types,
                                                                       gint                        n_types,
-                                                                      const gchar               
**variable_names,
+                                                                      const gchar * const        
*variable_names,
                                                                       gint                        
n_variable_names,
                                                                       gboolean                    threadsafe,
                                                                       GError                    **error);