Fix leaving extra spaces before tabs on lining up declarations. (#1723)

* verilog-mode.el (verilog-indent-declaration, verilog-pretty-declarations):
Reported by TAKAI Kousuke.

Author: t-a-k

tests_batch_ok/autoinout.v

@@ -60,8 +60,8 @@ module instio (/*AUTOARG*/
    inout  sec_io;
    output sec_out;
 
-   wire   lower_out = lower_ina | lower_io;
-   wire   sec_out = sec_ina | sec_io;
+   wire	  lower_out = lower_ina | lower_io;
+   wire	  sec_out = sec_ina | sec_io;
 
 endmodule
 

tests_batch_ok/autoinst_lopaz.v

@@ -2,7 +2,7 @@ module io1_sub(
 	       /*AUTOARG*/);
 
    wire	[42:0]	bscan_data;         // boundary scan stitch
-   parameter 	bscan_count = 0;
+   parameter	bscan_count = 0;
 
    assign 	bscan_data[0] = bscan_in;
 

tests_batch_ok/autoinst_star.v

@@ -3,7 +3,7 @@ module io1_sub (/*AUTOARG*/);
    /*AUTOWIRE*/
    // Beginning of automatic wires (for undeclared instantiated-module outputs)
    wire [w-1:0]		pin;			// To/From MD31_pad of autoinst_lopaz_srpad.v
-   wire [2*w-1:0] 	pin_in;			// From MD31_pad of autoinst_lopaz_srpad.v, ...
+   wire [2*w-1:0]	pin_in;			// From MD31_pad of autoinst_lopaz_srpad.v, ...
    wire			templated;		// To/From MD31_pad of autoinst_lopaz_srpad.v
    // End of automatics
 

verilog-mode.el

@@ -7157,11 +7157,11 @@ Be verbose about progress unless optional QUIET set."
 			(forward-char -1)
 			(just-one-space)
 			(goto-char (marker-position m1))
-			(just-one-space)
-			(indent-to ind))
+                        (delete-horizontal-space)
+                        (indent-to ind 1))
 		    (progn
-		      (just-one-space)
-		      (indent-to ind)))))
+                      (delete-horizontal-space)
+                      (indent-to ind 1)))))
 	       ((verilog-continued-line-1 (marker-position startpos))
 		(goto-char e)
 		(indent-line-to ind))
@@ -7324,12 +7324,10 @@ BASEIND is the base indent to offset everything."
 			  (forward-char -1)
 			  (just-one-space)
 			  (goto-char (marker-position m1))
-			  (just-one-space)
-			  (indent-to ind))
-		      (if (/= (current-column) ind)
-			  (progn
-			    (just-one-space)
-			    (indent-to ind)))))
+                          (delete-horizontal-space)
+                          (indent-to ind 1))
+                      (delete-horizontal-space)
+                      (indent-to ind 1)))
 		(if (looking-at verilog-declaration-re-2-no-macro)
 		    (let ((p (match-end 0)))
 		      (set-marker m1 p)
@@ -7338,12 +7336,10 @@ BASEIND is the base indent to offset everything."
 			    (forward-char -1)
 			    (just-one-space)
 			    (goto-char (marker-position m1))
-			    (just-one-space)
-			    (indent-to ind))
-			(if (/= (current-column) ind)
-			    (progn
-			      (just-one-space)
-			      (indent-to ind))))))))))
+                            (delete-horizontal-space)
+                            (indent-to ind 1))
+                        (delete-horizontal-space)
+                        (indent-to ind 1))))))))
     (goto-char pos)))
 
 (defun verilog-get-lineup-indent (b edpos)