Correct spelling of "alignment".

* src/abg-reporter-priv.cc: s/alignement/alignment/
	* tests/data/test-abidiff/test-struct0-report.txt: Ditto..
	* tests/data/test-abidiff/test-struct1-report.txt: Ditto.
	* tests/data/test-abidiff/test-var0-report.txt: Ditto.

Signed-off-by: Giuliano Procida <gprocida@google.com>

src/abg-reporter-priv.cc

@@ -812,7 +812,7 @@ report_size_and_alignment_changes(type_or_decl_base_sptr	first,
       if (n)
 	out << "\n";
       out << indent;
-      show_numerical_change("type alignement", fa, sa, *ctxt, out,
+      show_numerical_change("type alignment", fa, sa, *ctxt, out,
 			    /*show_bits_or_bytes=*/false);
       n = true;
     }

tests/data/test-abidiff/test-struct0-report.txt

@@ -7,7 +7,7 @@
      type of 'char s0::m1' changed:
        type name changed from 'char' to 'unsigned int'
        type size changed from 8 to 32 (in bits)
-       type alignement changed from 8 to 32
+       type alignment changed from 8 to 32
 
   's0&' changed:
     referenced type 'class s0' changed, as reported earlier

tests/data/test-abidiff/test-struct1-report.txt

@@ -13,7 +13,7 @@
      type of 'int s0::m0' changed:
        type name changed from 'int' to 'char'
        type size changed from 32 to 8 (in bits)
-       type alignement changed from 32 to 8
+       type alignment changed from 32 to 8
 
      'unsigned int s0::m2' offset changed from 128 to 192 (in bits) (by +64 bits)
   'const s0' changed:

tests/data/test-abidiff/test-var0-report.txt

@@ -3,4 +3,4 @@
     type of variable changed:
      type name changed from 'int' to 'char'
      type size changed from 32 to 8 (in bits)
-     type alignement changed from 32 to 8
+     type alignment changed from 32 to 8