Fix wrong placeholder index in error message packInaccessible

See: https://www.eclipse.org/lists/jgit-dev/msg03850.html
Change-Id: I0e121a2b7ac399f4a663fa49ab330d27363e9a55
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>

org.eclipse.jgit/resources/org/eclipse/jgit/internal/JGitText.properties

@@ -472,7 +472,7 @@ packfileIsTruncated=Packfile {0} is truncated.
 packfileIsTruncatedNoParam=Packfile is truncated.
 packHandleIsStale=Pack file {0} handle is stale, removing it from pack list
 packHasUnresolvedDeltas=pack has unresolved deltas
-packInaccessible=Failed to access pack file {0},  caught {2} consecutive errors while trying to access this pack.
+packInaccessible=Failed to access pack file {0}, caught {1} consecutive errors while trying to access this pack.
 packingCancelledDuringObjectsWriting=Packing cancelled during objects writing
 packObjectCountMismatch=Pack object count mismatch: pack {0} index {1}: {2}
 packRefs=Pack refs